prove that sin theta/sin(90-theta) + cos theta/cos(90-theta) =sec theta*cosec theta(no spamming)
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sin theta/sin(90-theta) + cos theta/cos(90-theta) = sec theta × cosec theta
sin theta/ cos theta + cos theta/sin theta
sin*2 theta + cos*2 theta/ cos theta× sin theta
1 / cos theta sin theta= sec theta cosec theta
1/ cos theta× 1 sin theta
sec theta * cosec theta = R.H.S
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