Math, asked by pri9ya0rindepriyasin, 1 year ago

Cot 1 cot 2....................cot 88 cot89 = ?

Answers

Answered by PrabhavBahety

cot1 cot2.....................................cot88 cot89=1
this is becuse tana=cot(90-a)
i.e, cot89=tan1
and cotA TanA=1
the remaining is cot45 whose value is 1....

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