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prove that tan 1 tan2 tan3.......tan89=1

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prove that tan 1 tan2 tan3.......tan89=1

Posted by Rinisha Aachu 5 years, 9 months ago

CBSE > Class 10 > Mathematics

3 answers

Yashasvi Jain 5 years, 9 months ago

Tan 89,=tan(90-1)=cot1 tan88=cot2 ... Tan1 .cot1=1... Tan1.tan2.tan3.....tan89=1

Vinay Creations 5 years, 9 months ago

We know tht tan 89 can be written cot 1 (tan 89= cot 90-89) so like that only tan 1 and cot 1 will be cancelled ) like this we will get 1

Sachin Mishra 5 years, 9 months ago

Answer 1.

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