Answer:
There you go.
Step-by-step explanation:
Please do tell me if it's wrong.
E. 1/2
Divide by 2, then make use of the Pythagorean identity for sine and cosine.
sin(x)^2 +cos(x)^2 = 2a
1 = 2a . . . . . . . sin²+cos²=1
1/2 = a
(5+6)3 I think?????????
61 degrees
add A and C and subtract 180 by the sum
