Math, asked by mukeshmurmu654, 4 months ago

1-cos2A/1+cos2A का मान

Answers

Answered by laharilalli83

0

Step-by-step explanation:

1+cos2A=2cos^2A

cos2A=2cos^2A-1

1-cos2A/1+cos2A=1-(2cos^2A-1)/2cos^2A

=-2cos^2A/2cos^2A

=-1

1-cos2A/1+cos2A=-1

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