Math, asked by ankit5168, 11 months ago

full solution in this question

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Answered by prudviraj75

1

tan A/1+tan^2A

=tanA/sec^2A

=tanA/secA×secA

=tanA×cosA/secA. secA=1/cosA

=sinA/cosA× cos A/seccA

=sinA/secA

Hence proved

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