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