Math, asked by princekaushal909, 5 months ago

secQ-tanQ/secQ+tanQ=1-2secQtanQ+2tan^2Q

Answers

Answered by sandy1816

5

Step-by-step explanation:

secQ-tanQ/secQ+tanQ

=(secQ-tanQ)²/sec²Q-tan²Q

=(secQ-tanQl²

=sec²Q+tan²Q-2secQtanQ

=1+tan²Q+tan²Q-2secQtanQ

=1-2secQtanQ+2tan²Q

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