Question

tell the answer for 48 points

Answer 1

-1 is answer. As you can apply the. general formula of trigonometry. Cos =sin you. 2_1.utrr_9_222=2. :-2-
_2=-1.

Answer 2

$\huge \fcolorbox {black}{hotpink}{\tt AnSwEr}$

-1 is the answer by appying the formula of Trigonometery..