Question

(1-cos^2@)sec^2@=tan^2@

Answer 1

Step-by-step explanation:

=(1-cos^2@)sec^2

= sin^2@×sec^@ (sin^2@+ cos^2@=1)

(sin^2@=1-cos^2)

=sin^2@× sec^2@

=sin^2@×1/cos^2

= sin2@/ cos2@

=tan2@

hence ,proved

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