Math, asked by ankit102, 1 year ago

5(tan^2x-cos^2x)=2cos2x+9 find value of cos4x

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Answered by NitinNehra113

1

your answer would be 1/3

ankit102: wrong

Answered by bhavya0918

5

hi
the answer is 2/9

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ankit102: right

bhavya0918: wlcm

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