Question

Which set of x numbers makes cosx=4?

A) 3pi/2, 7pi/2, 11pi/2
B) all multiples of Pi
C) Pi, 3pi, 5pi
D) 0, 2pi, 4pi

Answer 1

are you sure that you write the question correctly? :)

Answer 2

Idk I copied it from the board I might have though it wasn't making any sense to me either!

Answer 3

do you know what is the maximum and minimum value of cosine x?

Answer 4

No it didn't list those, I think I copied it down wrong but thanks so much for the help! :)