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Matematika Berhingga Contoh
logx(y)+logy(x)=2.9logx(y)+logy(x)=2.9 , xy=128
Langkah 1
Langkah 1.1
Bagi setiap suku pada (2.9-logx(y))ln(y)=ln(x) dengan ln(y) dan sederhanakan.
Langkah 1.1.1
Bagilah setiap suku di (2.9-logx(y))ln(y)=ln(x) dengan ln(y).
(2.9-logx(y))ln(y)ln(y)=ln(x)ln(y)
y=128x
Langkah 1.1.2
Sederhanakan sisi kirinya.
Langkah 1.1.2.1
Batalkan faktor persekutuan dari ln(y).
Langkah 1.1.2.1.1
Batalkan faktor persekutuan.
(2.9-logx(y))ln(y)ln(y)=ln(x)ln(y)
y=128x
Langkah 1.1.2.1.2
Bagilah 2.9-logx(y) dengan 1.
2.9-logx(y)=ln(x)ln(y)
y=128x
2.9-logx(y)=ln(x)ln(y)
y=128x
2.9-logx(y)=ln(x)ln(y)
y=128x
2.9-logx(y)=ln(x)ln(y)
y=128x
Langkah 1.2
Kurangkan 2.9 dari kedua sisi persamaan tersebut.
-logx(y)=ln(x)ln(y)-2.9
y=128x
Langkah 1.3
Bagi setiap suku pada -logx(y)=ln(x)ln(y)-2.9 dengan -1 dan sederhanakan.
Langkah 1.3.1
Bagilah setiap suku di -logx(y)=ln(x)ln(y)-2.9 dengan -1.
-logx(y)-1=ln(x)ln(y)-1+-2.9-1
y=128x
Langkah 1.3.2
Sederhanakan sisi kirinya.
Langkah 1.3.2.1
Membagi dua nilai negatif menghasilkan nilai positif.
logx(y)1=ln(x)ln(y)-1+-2.9-1
y=128x
Langkah 1.3.2.2
Bagilah logx(y) dengan 1.
logx(y)=ln(x)ln(y)-1+-2.9-1
y=128x
logx(y)=ln(x)ln(y)-1+-2.9-1
y=128x
Langkah 1.3.3
Sederhanakan sisi kanannya.
Langkah 1.3.3.1
Sederhanakan setiap suku.
Langkah 1.3.3.1.1
Pindahkan tanda negatif dari penyebut ln(x)ln(y)-1.
logx(y)=-1⋅ln(x)ln(y)+-2.9-1
y=128x
Langkah 1.3.3.1.2
Tulis kembali -1⋅ln(x)ln(y) sebagai -ln(x)ln(y).
logx(y)=-ln(x)ln(y)+-2.9-1
y=128x
Langkah 1.3.3.1.3
Bagilah -2.9 dengan -1.
logx(y)=-ln(x)ln(y)+2.9
y=128x
logx(y)=-ln(x)ln(y)+2.9
y=128x
logx(y)=-ln(x)ln(y)+2.9
y=128x
logx(y)=-ln(x)ln(y)+2.9
y=128x
logx(y)=-ln(x)ln(y)+2.9
y=128x
Langkah 2
Langkah 2.1
Sederhanakan -log-ln(x)ln(y)+2.9(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9.
Langkah 2.1.1
Sederhanakan setiap suku.
Langkah 2.1.1.1
Sederhanakan pembilangnya.
Langkah 2.1.1.1.1
Untuk menuliskan 2.9 sebagai pecahan dengan penyebut umum, kalikan dengan ln(y)ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log-ln(x)ln(y)+2.9⋅ln(y)ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.1.2
Gabungkan 2.9 dan ln(y)ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log-ln(x)ln(y)+2.9ln(y)ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.1.3
Gabungkan pembilang dari penyebut persekutuan.
logx(log-ln(x)ln(y)+2.9(x))=-log-ln(x)+2.9ln(y)ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.1.4
Sederhanakan pembilangnya.
Langkah 2.1.1.1.4.1
Faktorkan 0.1 dari -ln(x)+2.9ln(y).
Langkah 2.1.1.1.4.1.1
Faktorkan 0.1 dari -ln(x).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-10ln(x))+2.9ln(y)ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.1.4.1.2
Faktorkan 0.1 dari 2.9ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-10ln(x))+0.1(29ln(y))ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.1.4.1.3
Faktorkan 0.1 dari 0.1(-10ln(x))+0.1(29ln(y)).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-10ln(x)+29ln(y))ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-10ln(x)+29ln(y))ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.1.4.2
Sederhanakan -10ln(x) dengan memindahkan 10 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+29ln(y))ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.1.4.3
Sederhanakan 29ln(y) dengan memindahkan 29 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log-ln(x)ln(y)+2.9(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2
Sederhanakan penyebutnya.
Langkah 2.1.1.2.1
Untuk menuliskan 2.9 sebagai pecahan dengan penyebut umum, kalikan dengan ln(y)ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log-ln(x)ln(y)+2.9⋅ln(y)ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.2
Gabungkan 2.9 dan ln(y)ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log-ln(x)ln(y)+2.9ln(y)ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.3
Gabungkan pembilang dari penyebut persekutuan.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log-ln(x)+2.9ln(y)ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.4
Sederhanakan pembilangnya.
Langkah 2.1.1.2.4.1
Faktorkan 0.1 dari -ln(x)+2.9ln(y).
Langkah 2.1.1.2.4.1.1
Faktorkan 0.1 dari -ln(x).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-10ln(x))+2.9ln(y)ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.4.1.2
Faktorkan 0.1 dari 2.9ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-10ln(x))+0.1(29ln(y))ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.4.1.3
Faktorkan 0.1 dari 0.1(-10ln(x))+0.1(29ln(y)).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-10ln(x)+29ln(y))ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-10ln(x)+29ln(y))ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.4.2
Sederhanakan -10ln(x) dengan memindahkan 10 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+29ln(y))ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.4.3
Sederhanakan 29ln(y) dengan memindahkan 29 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log-ln(x)ln(y)+2.9(x))+2.9
y=128x
Langkah 2.1.1.2.5
Untuk menuliskan 2.9 sebagai pecahan dengan penyebut umum, kalikan dengan ln(y)ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log-ln(x)ln(y)+2.9⋅ln(y)ln(y)(x))+2.9
y=128x
Langkah 2.1.1.2.6
Gabungkan 2.9 dan ln(y)ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log-ln(x)ln(y)+2.9ln(y)ln(y)(x))+2.9
y=128x
Langkah 2.1.1.2.7
Gabungkan pembilang dari penyebut persekutuan.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log-ln(x)+2.9ln(y)ln(y)(x))+2.9
y=128x
Langkah 2.1.1.2.8
Sederhanakan pembilangnya.
Langkah 2.1.1.2.8.1
Faktorkan 0.1 dari -ln(x)+2.9ln(y).
Langkah 2.1.1.2.8.1.1
Faktorkan 0.1 dari -ln(x).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-10ln(x))+2.9ln(y)ln(y)(x))+2.9
y=128x
Langkah 2.1.1.2.8.1.2
Faktorkan 0.1 dari 2.9ln(y).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-10ln(x))+0.1(29ln(y))ln(y)(x))+2.9
y=128x
Langkah 2.1.1.2.8.1.3
Faktorkan 0.1 dari 0.1(-10ln(x))+0.1(29ln(y)).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-10ln(x)+29ln(y))ln(y)(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-10ln(x)+29ln(y))ln(y)(x))+2.9
y=128x
Langkah 2.1.1.2.8.2
Sederhanakan -10ln(x) dengan memindahkan 10 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+29ln(y))ln(y)(x))+2.9
y=128x
Langkah 2.1.1.2.8.3
Sederhanakan 29ln(y) dengan memindahkan 29 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))+2.9
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))+2.9
y=128x
Langkah 2.1.2
Untuk menuliskan 2.9 sebagai pecahan dengan penyebut umum, kalikan dengan log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))+2.9⋅log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.3
Sederhanakan suku-suku.
Langkah 2.1.3.1
Gabungkan 2.9 dan log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))+2.9log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.3.2
Gabungkan pembilang dari penyebut persekutuan.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)+2.9log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x)+2.9log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.4
Sederhanakan pembilangnya.
Langkah 2.1.4.1
Faktorkan 0.1 dari -log0.1(-ln(x10)+ln(y29))ln(y)(x)+2.9log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)).
Langkah 2.1.4.1.1
Faktorkan 0.1 dari -log0.1(-ln(x10)+ln(y29))ln(y)(x).
logx(log-ln(x)ln(y)+2.9(x))=0.1(-10log0.1(-ln(x10)+ln(y29))ln(y)(x))+2.9log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.4.1.2
Faktorkan 0.1 dari 2.9log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)).
logx(log-ln(x)ln(y)+2.9(x))=0.1(-10log0.1(-ln(x10)+ln(y29))ln(y)(x))+0.1(29log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.4.1.3
Faktorkan 0.1 dari 0.1(-10log0.1(-ln(x10)+ln(y29))ln(y)(x))+0.1(29log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))).
logx(log-ln(x)ln(y)+2.9(x))=0.1(-10log0.1(-ln(x10)+ln(y29))ln(y)(x)+29log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=0.1(-10log0.1(-ln(x10)+ln(y29))ln(y)(x)+29log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.4.2
Sederhanakan -10log0.1(-ln(x10)+ln(y29))ln(y)(x) dengan memindahkan 10 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=0.1(-log0.1(-ln(x10)+ln(y29))ln(y)(x10)+29log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.4.3
Sederhanakan 29log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)) dengan memindahkan 29 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=0.1(-log0.1(-ln(x10)+ln(y29))ln(y)(x10)+log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=0.1(-log0.1(-ln(x10)+ln(y29))ln(y)(x10)+log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.5
Sederhanakan dengan memfaktorkan.
Langkah 2.1.5.1
Faktorkan -1 dari -log0.1(-ln(x10)+ln(y29))ln(y)(x10).
logx(log-ln(x)ln(y)+2.9(x))=0.1(-(log0.1(-ln(x10)+ln(y29))ln(y)(x10))+log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.5.2
Faktorkan -1 dari log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)).
logx(log-ln(x)ln(y)+2.9(x))=0.1(-(log0.1(-ln(x10)+ln(y29))ln(y)(x10))-1(-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x))))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.5.3
Faktorkan -1 dari -(log0.1(-ln(x10)+ln(y29))ln(y)(x10))-1(-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x))).
logx(log-ln(x)ln(y)+2.9(x))=0.1(-(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x))))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.5.4
Sederhanakan pernyataannya.
Langkah 2.1.5.4.1
Tulis kembali -(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x))) sebagai -1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x))).
logx(log-ln(x)ln(y)+2.9(x))=0.1(-1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x))))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 2.1.5.4.2
Pindahkan tanda negatif di depan pecahan.
logx(log-ln(x)ln(y)+2.9(x))=-0.1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-0.1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-0.1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-0.1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-0.1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3
Langkah 3.1
Sederhanakan -0.1(log0.1(-ln(x10)+ln(y29))ln(y)(x10)-log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)29(x)))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x)).
Langkah 3.1.1
Gunakan sifat hasil bagi dari logaritma, logb(x)-logb(y)=logb(xy).
logx(log-ln(x)ln(y)+2.9(x))=-0.1log0.1(-ln(x10)+ln(y29))ln(y)(x10log0.1(-ln(x10)+ln(y29))ln(y)29(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3.1.2
Sederhanakan 0.1log0.1(-ln(x10)+ln(y29))ln(y)(x10log0.1(-ln(x10)+ln(y29))ln(y)29(x)) dengan memindahkan 0.1 ke dalam logaritma.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)((x10log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3.1.3
Sederhanakan pembilangnya.
Langkah 3.1.3.1
Terapkan kaidah hasil kali ke x10log0.1(-ln(x10)+ln(y29))ln(y)29(x).
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)((x10)0.1(log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3.1.3.2
Sederhanakan pembilangnya.
Langkah 3.1.3.2.1
Kalikan eksponen dalam (x10)0.1.
Langkah 3.1.3.2.1.1
Terapkan kaidah pangkat dan perkalian eksponen, (am)n=amn.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x10⋅0.1(log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3.1.3.2.1.2
Kalikan 10 dengan 0.1.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x(log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x(log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3.1.3.2.2
Sederhanakan.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x(log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x(log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3.1.3.3
Kalikan eksponen dalam (log0.1(-ln(x10)+ln(y29))ln(y)29(x))0.1.
Langkah 3.1.3.3.1
Terapkan kaidah pangkat dan perkalian eksponen, (am)n=amn.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(x(log0.1(-ln(x10)+ln(y29))ln(y)(x))29⋅0.1)log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
Langkah 3.1.3.3.2
Kalikan 29 dengan 0.1.
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(xlog0.1(-ln(x10)+ln(y29))ln(y)2.9(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(xlog0.1(-ln(x10)+ln(y29))ln(y)2.9(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(xlog0.1(-ln(x10)+ln(y29))ln(y)2.9(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(xlog0.1(-ln(x10)+ln(y29))ln(y)2.9(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x
logx(log-ln(x)ln(y)+2.9(x))=-log0.1(-ln(x10)+ln(y29))ln(y)(xlog0.1(-ln(x10)+ln(y29))ln(y)2.9(x))log0.1(-ln(x10)+ln(y29))ln(y)(log0.1(-ln(x10)+ln(y29))ln(y)(x))
y=128x