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Question

State true or false.
tan1.tan89=tan2.tan88


A
True
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B
False
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Solution

The correct option is A True
tan1.tan89=tan1.cot(9089)
=tan1. cot1
since, tanθ.cotθ=1
=1
similarly,tan2.tan88=tan2.cot(9088)
tan2.cot2=1
tan1.tan89=tan2.tan88

Mathematics

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