सिद्ध करे की tan° + cot ° = sec ° × cosec °
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LHs
tan + cot
=sin/cos + cos / sin
= sin^2 + cos^2/sin . cos
= 1/sin . cos (sin^2 + cos^2=1 )
= 1/sin . 1/cos
= cosec . Sec = rhs
hence proved
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