Question

Please help! Precalc/Trig problem :/ Click attached

Answer 1

its esy
-
A
-----
IAI

Answer 2

?

Answer 3

3i-4j
-------
\[\sqrt{(3^2)+(4^2)}\]

Answer 4

now do u get it????

Answer 5

Yes, I think I do. So its option a. right?

Answer 6

to find the unit vector you would find the magnitude then divide the vector w/ the magnitude

Answer 7

no option b

Answer 8

A=<3,-4>
so the magnitude is 5 then when you divide you would get <3/5,-4/5> or 3/5 j -4/5 k

Answer 9

i * j* so answer is B

Answer 10

Thank you guys! Wish I could give you both medals