Question

cos theta - sin theta + 1 / cos theta + sin theta -1 = 1+ cos theta / sin theta​

Answer 1

Answer:

cos theta-sin theta +1/cos theta +sin theta -1=sin theta +cos theta/sin theta

Applying Componendo and Dividendo

cos theta/-sin theta+1=2sin theta+ cos theta/cos theta

cos^2 theta=(1-sin theta)(2sin theta+ cos theta)

cos^2 theta =2sin theta+ cos theta-2sin^2 theta-sin theta*cos theta

cos^2 theta+sin^2 theta=-sin^2 theta-sin theta*cos theta+2sin theta+cos theta

Step-by-step explanation: