Linear Algebra Examples

Find a Unit Vector in the Direction of the Given Vector
(1,3)
Step 1
To find a unit vector in the same direction as a vector v⃗, divide by the norm of v⃗.
v⃗|v⃗|
Step 2
The norm is the square root of the sum of squares of each element in the vector.
12+32
Step 3
Simplify.
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Step 3.1
One to any power is one.
1+32
Step 3.2
Raise 3 to the power of 2.
1+9
Step 3.3
Add 1 and 9.
10
10
Step 4
Divide the vector by its norm.
(1,3)10
Step 5
Divide each element in the vector by 10.
(110,310)
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 [x2  12  π  xdx ] 
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