###
Equivalent vectors have the same

magnitude and direction

###
Magnitude is also called

distance

###
A symbol for Magnitude is

llVll

###
Component form of a vector is

(V1, V2)

###
To find component form, you need to remember

Terminal - Initial

###
To get 2 vectors into one, you...

add them together

###
To find the magnitude you....

√(〖V1〗^2+〖V2〗^2 )

###
Vector addition:

add V1 and U1, and add V2 and U2

###
Scalar multiplication:

(KV1, KV2)

###
A negative scalar....

Reverses the direction of the vector

###
A vector u in length llull = 1

is a unit vector

###
Formula to find the unit vector in the direction of v is

v / llvll (vector / magnitude)

###
If the direction is negative...

add 180 degrees until it's in the correct quadrant!

###
Direction angle formula

tan^(-1)〖y/x〗

###
true direction

direction formulla

###
Dot product formula for u . v

(U1 ** V1) + (U2 ** V2)

###
Vectors orthogonal if they equal

0

###
Find parallel by

looking at ratios between components

###
Space vectors are

(V1, V2, V3)

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