Question

*
cos x/3-
1 = 0
plz solve it fast

Answer 1

Hi there!

Here's your answer:

$\cos( \frac{x}{3} - 1) = 0 \\ \cos( \frac{x}{3} - 1 ) = \cos(90) \\ \frac{x}{3} - 1 = 90 \\ \frac{x}{3} = 91 \\ x = 273$

Hope this helps.

Thanks.

Answer 2

Answer:

I don't lnow this answer