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03-03-2021
Mathematics

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1-sin©÷1+sin©=(sin©-tan©)

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0987yt6r5dhjfy 0987yt6r5dhjfy

03-03-2021

sin2(t) + cos2(t) = 1. tan2(t) + 1 = sec2(t). 1 + cot2(t) = csc2(t)

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