" UPLE "8quad " If "cos theta+sin theta=1," prove that "cos theta-sin theta=+-1

If cos theta + sin theta =1 , prove that cos theta - sin theta = pm 1.

If sin theta+ sin^2 theta = 1 , prove that cos^2 theta+ cos^4 theta = 1 .

If sin theta+cos theta=1 prove that sin theta-cos theta=+-1

If sin theta+sin^(2)theta=1, prove that cos^(2)theta+cos^(4)theta=1

If sin theta+sin^(2)theta=1 Prove that cos^(2)theta+cos^(4)theta=1

If sin theta+ sin^(2)theta=1 , then prove that cos^(2) theta+cos^(4) theta=1.

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

If x=(2sin theta)/(1+cos theta+sin theta), then prove that (1-cos theta+sin theta)/(1+sin theta) is equal to x

prove that sin theta + tan theta = (cos theta) / (1-sin theta)

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