Math, asked by matya, 10 months ago

tan^2A - 1/cos^2A=-1

Answers

Answered by katwalsangam

1

Answer:

Step-by-step explanation:

tan^2A - 1/cos^2A =tan^2A - sec^2A

=-{sec^2A - tan^2A}

=-1

=R.H.S proved

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