Question

solve 3(cscx-2)=2-cscx

Answer 1

3 cos(2x) − cos x + 2 = 0
3 (2 cos²x − 1) − cos x + 2 = 0
6 cos²x − 3 − cos x + 2 = 0
6 cos²x − cos x − 1 = 0
(3 cosx + 1) (2 cosx − 1) = 0

3 cosx + 1 = 0
cosx = −1/3
x = arccos(−1/3), 360 − arccos(−1/3)
x = 109.47°, 250.53°

2 cosx − 1 = 0
cosx = 1/2
x = 60°, 300

Answer 2

hope's it helps

Answer 3

thannk you!

Answer 4

np

Answer 5

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