sinxの微分がcosx になるのはなぜですか?
実際に出題された「sinxの微分はcosx」の証明【大阪大学】
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Trig Help: y = sin x + cos x のグラフ作成。
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Prove that sin3x+sinx/cos3x+cosx=tan2x
`(sinx+sin3x+sin5x)/(cosx+cos3x+cos5x)=tan3x`
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The complex numbers sinx + i cos2x and cosx i sin2x are conjugate to each other for |COMPLEX NUMBERS
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Prove that :- (sinx + sin3x)/(cosx - cos3x) = cotx