Math, asked by hafsamalik, 1 year ago

prove that 1-2sin^2 theta =2cos^2theta-1

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Answered by Anonymous

i m right or m I right

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hafsamalik: how 2cos^2theta????formula is sin^2 =1-cos^2 na then how its 2 cos^2 plz explain

Anonymous: pagal ho

hafsamalik: you silly

Anonymous: you silly .. not i m

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