Math, asked by mosisk700, 1 year ago

tan² A cos² A = 1 – cos²A.

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Answered by terminator10

2

STEP BY STEP EXPLANATION GIVEN IN THE ABOVE PIC

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Answered by Thinkab13

0

Answer:

Let me prove the question in a reverse manner

RHS (Right Hand Side)

=1 - cos^2A

=sin^2A+cos^2A-cos^A ( sin^2+cos^2=1)

=sin^2A

Now you multiply with cos^2A/ cos^2A

=sin^2A × cos^2A/cos^2A

=sin^2A/cos^2A×cos^2A

(tan^2A=sin^2A/cos^2A)

=tan^2A×cos^2A

= LHS

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