Question

Name FIVE x-values for which the cosine function equals 0.

Answer 1

Hint: \(\large cos(x) = 0\)



as you can see the cosine function oscillates so it can be 0 at many points

I'll give you one.....At x = 90 degrees or \(\large \frac{\pi}{2}\)

Answer 2

would it be 90 times every odd number

Answer 3

That will also play the same in the negative region since cos is an odd function we also know that

\[\large cos(-\frac{\pi}{2}) = 0\]

Answer 4

90*1
90*3
etc ?

Answer 5

You are correct. 90 degrees times every odd number (positive or negative) will keep resulting of cos(x) = 0

Answer 6

ok thx