Question

What is the measure of the angle between v = <4, 0> and w = <6, 1>?

Answer 1

by definition:
\[|\vec u||\vec v|\cos\alpha=\vec u\cdot\vec v\]

Answer 2

soo, divide and inverse cosine to determine alpha

Answer 3

i still dont understand

Answer 4

then you may want to review your material to determine how to do a dot product operation, and also to find the length of a vector.

Answer 5

otherwise, this amounts to trig identites

Answer 6

say:

angle c = angle b - angle a

sin(c) = sin(b-a)
= sinb cosa - sina cosb

Answer 7

im doing an online class to get ahead in high school for i dont have to take it my senior year so i really dont have anything to study

Answer 8

i understand it this far

Answer 9

but you have to have some knowledge base to work with. you understand the triggy part?

Answer 10

yeah i understand that part