Math, asked by harsh7718, 10 months ago

cos2theta-sin2theta=2cos2theta-3

Answers

Answered by adeshrajputtirwa

0

Answer:

Step-by-step explanation:

Cos^2@-sin^2@

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

=cos^2@-1+cos^2@

=2cos^2@-1

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