Question

I NEED HELP HURRY PLEASE, THANKS! :)

Answer 1

Answer:  $\bold{b)\quad \dfrac{\pi}{2}+n\pi,\ \dfrac{\pi}{4}+2n\pi}$

Step-by-step explanation:

cos x tan x - cos x = 0

cos x (tan x - 1) = 0

cos x = 0          tan x - 1 = 0

$x=\dfrac{\pi}{2},\ \dfrac{3\pi}{2}$         tan x = 1

                         $x=\dfrac{\pi}{4},\ \dfrac{5\pi}{4}$

Answer 2

Thanks! I hope my answer would be easy to understand.