Math, asked by vik2kumar12, 1 year ago

cos²180/16+cos²1260/16+cos²900/16+cos²900/16

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Answered by prasantaghariali

1

cos^2 180/16+cos^2(90-180/16)+cos^2(900/16)+cos(90-900/16)

=cos^2(180/16)+sin^2(180/16)+cos^2(900/16)+sin^2(900/16)

=1+1

=2

vik2kumar12: galt hai

vik2kumar12: second bhag jlt h

prasantaghariali: oops ak min

vik2kumar12: answer malum ni

vik2kumar12: mujhe

prasantaghariali: sahi h mere bhai

prasantaghariali: kyuki cos(90-@)=sin@ or sin(90-@)=cos@

vik2kumar12: achha se dekho bhai

vik2kumar12: glt h

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