Math, asked by Abhaychoudhary, 1 year ago

tan69°+tan66°|1-tan69°tan66°

Answers

Answered by souravsarkar045

13

here is your answer. i hope this is correct

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Answered by GB2010

12

tan ( A+ B ) = tanA + tanB / 1 - tanA tanB...
Hence above eqn = tan (69 + 66)
= tan ( 135 )
= tan ( 90 + 45 )
= - cot (45)
= - 1
.....

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