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人気のある微分積分 >

integral of sin^4(xco)s^5x

解

\int sin^{4} (x co) s^{5} x d x

解

\frac{s ^{5}}{32 c ^{2} o ^{2}} (6 c^{2} o^{2} x^{2} - 8 co x sin^{3} (co x) cos (co x) - 6 co x sin (2 co x) + 2 sin^{4} (co x) - 3 cos (2 co x)) + C

解答ステップ

\int sin^{4} (x co) s^{5} x d x

定数を除く:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= s^{5} \cdot \int sin^{4} (co x) x d x

u置換積分法を適用する

= s^{5} \cdot \int \frac{u sin ^{4} ( u )}{c ^{2} o ^{2}} d u

定数を除く:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= s^{5} \frac{1}{c ^{2} o ^{2}} \cdot \int u sin^{4} (u) d u

部分積分を適用する

= s^{5} \frac{1}{c ^{2} o ^{2}} (u (- \frac{1}{4} sin^{3} (u) cos (u) + \frac{3}{8} (u - \frac{1}{2} sin (2 u))) - \int - \frac{1}{4} sin^{3} (u) cos (u) + \frac{3}{8} (u - \frac{1}{2} sin (2 u)) d u)

\int - \frac{1}{4} sin^{3} (u) cos (u) + \frac{3}{8} (u - \frac{1}{2} sin (2 u)) d u = - \frac{1}{16} sin^{4} (u) + \frac{3}{8} (\frac{u ^{2}}{2} + \frac{1}{4} cos (2 u))

= s^{5} \frac{1}{c ^{2} o ^{2}} (u (- \frac{1}{4} sin^{3} (u) cos (u) + \frac{3}{8} (u - \frac{1}{2} sin (2 u))) - (- \frac{1}{16} sin^{4} (u) + \frac{3}{8} (\frac{u ^{2}}{2} + \frac{1}{4} cos (2 u))))

代用を戻す

u = co x

= s^{5} \frac{1}{c ^{2} o ^{2}} (co x (- \frac{1}{4} sin^{3} (co x) cos (co x) + \frac{3}{8} (co x - \frac{1}{2} sin (2 co x))) - (- \frac{1}{16} sin^{4} (co x) + \frac{3}{8} (\frac{( co x ) ^{2}}{2} + \frac{1}{4} cos (2 co x))))

簡素化

s^{5} \frac{1}{c ^{2} o ^{2}} (co x (- \frac{1}{4} sin^{3} (co x) cos (co x) + \frac{3}{8} (co x - \frac{1}{2} sin (2 co x))) - (- \frac{1}{16} sin^{4} (co x) + \frac{3}{8} (\frac{( co x ) ^{2}}{2} + \frac{1}{4} cos (2 co x)))) : \frac{s ^{5}}{32 c ^{2} o ^{2}} (6 c^{2} o^{2} x^{2} - 8 co x sin^{3} (co x) cos (co x) - 6 co x sin (2 co x) + 2 sin^{4} (co x) - 3 cos (2 co x))

= \frac{s ^{5}}{32 c ^{2} o ^{2}} (6 c^{2} o^{2} x^{2} - 8 co x sin^{3} (co x) cos (co x) - 6 co x sin (2 co x) + 2 sin^{4} (co x) - 3 cos (2 co x))

定数を解答に追加する

= \frac{s ^{5}}{32 c ^{2} o ^{2}} (6 c^{2} o^{2} x^{2} - 8 co x sin^{3} (co x) cos (co x) - 6 co x sin (2 co x) + 2 sin^{4} (co x) - 3 cos (2 co x)) + C

グラフ

人気の例

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\int \frac{t ^{2}}{t} d t

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