Question

2sin theta×cos theta=xsin theta​

Answer 1

Answer:

-2 < x < 2  

Step-by-step explanation:

2sin theta×cos theta=xsin theta​

2SinθCosθ = xSinθ

cancelling Sinθ from both sides

Sinθ ≠ 0 so Cosθ ≠ 1 or -1

2Cosθ = x

=> Cosθ = x/2

-1 < Cosθ < 1    

-1 < x/2 < 1

-2 < x < 2