Mathway | 热门问题

热门问题

等级	主题	问题	格式化的问题
10001	求X轴截距和Y轴截距	x+3y-2=0	$x + 3 y - 2 = 0$
10002	求X轴截距和Y轴截距	f(x)=x^2-4x-77	$f (x) = x^{2} - 4 x - 77$
10003	求X轴截距和Y轴截距	cos(x)	$\cos (x)$
10004	求X轴截距和Y轴截距	pi/2	$\frac{π}{2}$
10005	求X轴截距和Y轴截距	f(x)=2tan(3x+pi)	$f (x) = 2 \tan (3 x + π)$
10006	求X轴截距和Y轴截距	3x=5y+2	$3 x = 5 y + 2$
10007	求X轴截距和Y轴截距	(x^2)/36+(y^2)/25=1	$\frac{x^{2}}{36} + \frac{y^{2}}{25} = 1$
10008	计算	cos(-(5pi)/6)	$\cos (- \frac{5 π}{6})$
10009	计算	1/( 26) 的平方根	$\frac{1}{\sqrt{26}}$
10010	求X轴截距和Y轴截距	cos(2x)	$\cos (2 x)$
10011	化简	cos(x)csc(x)tan(x)	$\cos (x) \csc (x) \tan (x)$
10012	化简	cos(x)tan(x)^2+cos(x)	$\cos (x) \tan^{2} (x) + \cos (x)$
10013	化简	cos(-x)-cos(x)	$\cos (- x) - \cos (x)$
10014	化简	cos(1/3)	$\cos (\frac{1}{3})$
10015	化简	cos(x/2)-cos((3x)/2)	$\cos (\frac{x}{2}) - \cos (\frac{3 x}{2})$
10016	化简	cos((11pi)/12)cos((3pi)/4)+sin((11pi)/12)sin((3pi)/4)	$\cos (\frac{11 π}{12}) \cos (\frac{3 π}{4}) + \sin (\frac{11 π}{12}) \sin (\frac{3 π}{4})$
10017	化简	cos(12/13)	$\cos (\frac{12}{13})$
10018	化简	cos(-12/13)	$\cos (- \frac{12}{13})$
10019	化简	cos(15/17)	$\cos (\frac{15}{17})$
10020	化简	arctan(3/4)	$\arctan (\frac{3}{4})$
10021	化简	cos(x)(1+tan(x^2))	$\cos (x) (1 + \tan (x^{2}))$
10022	化简	arcsin(0.4)	$\arcsin (0.4)$
10023	化简	arccos(5/13)	$\arccos (\frac{5}{13})$
10024	化简	9p	$9 p$
10025	化简	cos(arccsc(u))	$\cos (arccsc (u))$
10026	化简	cos(pi/12)cos((5pi)/12)+sin(pi/12)sin((5pi)/12)	$\cos (\frac{π}{12}) \cos (\frac{5 π}{12}) + \sin (\frac{π}{12}) \sin (\frac{5 π}{12})$
10027	化简	cos(pi/12)cos(-pi/4)+sin(pi/12)sin(-pi/4)	$\cos (\frac{π}{12}) \cos (- \frac{π}{4}) + \sin (\frac{π}{12}) \sin (- \frac{π}{4})$
10028	化简	cos(pi/20)cos(pi/5)-sin(pi/20)sin(pi/5)	$\cos (\frac{π}{20}) \cos (\frac{π}{5}) - \sin (\frac{π}{20}) \sin (\frac{π}{5})$
10029	化简	cos(pi/2-x)cot(x)	$\cos (\frac{π}{2} - x) \cot (x)$
10030	化简	cos((7pi)/12)cos(pi/3)+sin((7pi)/12)sin(pi/3)	$\cos (\frac{7 π}{12}) \cos (\frac{π}{3}) + \sin (\frac{7 π}{12}) \sin (\frac{π}{3})$
10031	化简	cos(arccos(u)+arcsin(v))	$\cos (\arccos (u) + \arcsin (v))$
10032	化简	cos(arccot(u))	$\cos (arccot (u))$
10033	化简	cos(-pi/3)	$\cos (- \frac{π}{3})$
10034	化简	cos(pi/4)-sin(pi/4)	$\cos (\frac{π}{4}) - \sin (\frac{π}{4})$
10035	化简	cos(pi/4)cos(pi/4)-sin(pi/4)sin(pi/4)	$\cos (\frac{π}{4}) \cos (\frac{π}{4}) - \sin (\frac{π}{4}) \sin (\frac{π}{4})$
10036	化简	cos(pi/6)cos(pi/3)-sin(pi/6)sin(pi/3)	$\cos (\frac{π}{6}) \cos (\frac{π}{3}) - \sin (\frac{π}{6}) \sin (\frac{π}{3})$
10037	化简	cos((19pi)/6)	$\cos (\frac{19 π}{6})$
10038	化简	cos((17pi)/12)	$\cos (\frac{17 π}{12})$
10039	化简	cos((23pi)/6)	$\cos (\frac{23 π}{6})$
10040	化简	cos((2pi)/9)cos(pi/18)+sin((2pi)/9)sin(pi/18)	$\cos (\frac{2 π}{9}) \cos (\frac{π}{18}) + \sin (\frac{2 π}{9}) \sin (\frac{π}{18})$
10041	化简	cos(-(4pi)/3)	$\cos (- \frac{4 π}{3})$
10042	化简	cos((-4pi)/3)	$\cos (\frac{- 4 π}{3})$
10043	化简	cos(-135)	$\cos (- 135)$
10044	化简	cos(15)cos(75)-sin(15)sin(75)	$\cos (15) \cos (75) - \sin (15) \sin (75)$
10045	化简	cos(22)	$\cos (22)$
10046	化简	cos(2x)-cos(4x)	$\cos (2 x) - \cos (4 x)$
10047	化简	cos(2x)+sin(2x)	$\cos (2 x) + \sin (2 x)$
10048	化简	cos(10)cos(80)-sin(10)sin(80)	$\cos (10) \cos (80) - \sin (10) \sin (80)$
10049	化简	cos(0-x)	$\cos (0 - x)$
10050	化简	cos(11)cos(19)-sin(11)sin(19)	$\cos (11) \cos (19) - \sin (11) \sin (19)$
10051	化简	cos(arcsin(9/x))	$\cos (\arcsin (\frac{9}{x}))$
10052	化简	cos(arcsin(4x))	$\cos (\arcsin (4 x))$
10053	化简	cot((3pi)/2)	$\cot (\frac{3 π}{2})$
10054	化简	cot((7pi)/3)	$\cot (\frac{7 π}{3})$
10055	化简	cot((3pi)/4)	$\cot (\frac{3 π}{4})$
10056	化简	cot(-(5pi)/12)	$\cot (- \frac{5 π}{12})$
10057	化简	cot(135)	$\cot (135)$
10058	化简	cot(x/2)	$\cot (\frac{x}{2})$
10059	化简	cot(240)	$\cot (240)$
10060	化简	cot(270)	$\cot (270)$
10061	化简	cot(36)	$\cot (36)$
10062	化简	cot(390)	$\cot (390)$
10063	化简	cot(53.130)	$\cot (53.13)$
10064	化简	cot(570)	$\cot (570)$
10065	化简	cos(x+2pi)	$\cos (x + 2 π)$
10066	化简	cos(x)-sin(x)cot(x)	$\cos (x) - \sin (x) \cot (x)$
10067	化简	cos(x)+sin(x)(tan(x))	$\cos (x) + \sin (x) (\tan (x))$
10068	化简	cos(x)+sin(y)	$\cos (x) + \sin (y)$
10069	化简	cos(x)-cos(x)	$\cos (x) - \cos (x)$
10070	化简	cos(-x)cos(x)-sin(-x)sin(x)	$\cos (- x) \cos (x) - \sin (- x) \sin (x)$
10071	化简	cos(x)*(sin(x))/(cos(x))	$\cos (x) \cdot \frac{\sin (x)}{\cos (x)}$
10072	化简	cos(t)(1+tan(t)^2)	$\cos (t) (1 + \tan^{2} (t))$
10073	化简	cos(tan(x))	$\cos (\tan (x))$
10074	化简	cos(x)(sec(x)+csc(x))	$\cos (x) (\sec (x) + \csc (x))$
10075	化简	cos(x)(csc(x)-sec(x))-cot(x)	$\cos (x) (\csc (x) - \sec (x)) - \cot (x)$
10076	化简	cos(arcsin(x/8))	$\cos (\arcsin (\frac{x}{8}))$
10077	化简	cos(arctan(x/2))	$\cos (\arctan (\frac{x}{2}))$
10078	化简	cos(arctan(t))	$\cos (\arctan (t))$
10079	化简	cos(75)+cos(15)	$\cos (75) + \cos (15)$
10080	化简	cos(68)	$\cos (68)$
10081	化简	cos(690)	$\cos (690)$
10082	化简	cos(6x)	$\cos (6 x)$
10083	化简	cos(570)	$\cos (570)$
10084	化简	cos(585)	$\cos (585)$
10085	化简	cos(6x)+cos(4x)	$\cos (6 x) + \cos (4 x)$
10086	化简	cos(60-45)	$\cos (60 - 45)$
10087	化简	cos(60)cos(45)+sin(60)sin(45)	$\cos (60) \cos (45) + \sin (60) \sin (45)$
10088	化简	cos(-600)	$\cos (- 600)$
10089	化简	cos(63)	$\cos (63)$
10090	化简	cos(50)cos(20)+sin(50)sin(20)	$\cos (50) \cos (20) + \sin (50) \sin (20)$
10091	化简	cos(50)	$\cos (50)$
10092	化简	cos(480)	$\cos (480)$
10093	化简	cos(4x)(cos(x)-1)	$\cos (4 x) (\cos (x) - 1)$
10094	化简	cos(405)	$\cos (405)$
10095	化简	cos(43)	$\cos (43)$
10096	化简	cos(3a+2b)cos(2b)+sin(3a+2b)sin(2b)	$\cos (3 a + 2 b) \cos (2 b) + \sin (3 a + 2 b) \sin (2 b)$
10097	化简	cos(3x)cos(5x)	$\cos (3 x) \cos (5 x)$
10098	化简	cos(30-x)	$\cos (30 - x)$
10099	化简	cos(3x)	$\cos (3 x)$
10100	化简	cos(30)*sin(45)	$\cos (30) \cdot \sin (45)$