Value of sin Φ cos 90-Φ+cos Φ sin (90-Φ)is
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sin theta.sin theta+cos theta.cos theta=1(sin^2 theta+cos^2 theta=1)
sin theta.sin theta+cos theta.cos theta=1(sin^2 theta+cos^2 theta=1)
shubhamtiwari31:
plz mark as brainliest
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I will say wait.....
Cos 90-tita=sin tita
Sin 90-tita=cos tita
Sin tita X sin tita + cos tita X cos tita =
Sin^2tita + cos^2tita = 1
Cos 90-tita=sin tita
Sin 90-tita=cos tita
Sin tita X sin tita + cos tita X cos tita =
Sin^2tita + cos^2tita = 1
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