Question

Solve:4 sin square theta - 4 cos theta = 1 .​

Answer 1

Step-by-step explanation:

4sin²theta -4 cos theta =1

4 ( 1 - cos² theta) - 4 cos theta = 1

4 - 4 cos² theta - 4 cos theta = 1

-4cos² theta -4 cos theta = 1-4

-4 cos² theta -4 cos theta = -3

4 ( -cos² theta - cos theta ) = -3

-cos²theta - cos theta = -3/4

Hence proved...