Math, asked by nikhil1919, 1 year ago

cos9°+sin9°/cos9°-sin9°

Answers

Answered by mysticd

3

=1/cos18+sin18/cos18
=sec18+tan18

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Answered by sani15

0

+sin9 and_sin9 gets cancel & +cos 9 and _cos9 gets cancel

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