Math, asked by perfect8210, 11 months ago

(tan11°+tan9°)+tan11°tan9° = ?

Answers

Answered by Anonymous

3

[tan(90°-9°)+tan9°] +tan(90°-9°)tan9°

cot9°+tan9°+cot9°tan9°

cot9°+tan°+1

hope it helps you......

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