Question

cos^2 36°-sin^2 54° pleaaaas

Answer 1

Answer:

Answer in the given attachment.

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Answer 2

Answer:

HII! HERE'S YOUR ANSWER

=cos²36-sin²54

=cos²36-sin²(90-36)

=cos²36-cos²36

=(cos²36-cos²36) get canceled

=1-1

=0

so, the answer is 0

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