Question

Trigonometric functions

Answer 1

Answer:

C

Step-by-step explanation:

To find the x- intercept let y = 0, hence

cos($\frac{x}{2}$) = 0

$\frac{x}{2}$ = $cos^{-1}$(0 ) = $\frac{\pi }{2}$

multiply both sides by 2

x = π ← x- intercept