Math, asked by prianshutripathi36, 6 months ago

Find the value of cos2 35° + cos2 55°

Answers

Answered by dctcmoradabad

6

Cos^2(35)

=cos^2(90-35)

=sin^2(55)

So cos^2( 35)+cos^2 (55)=sin^2(55)+cos^2( 55)=1

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