ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある微分積分 >

integral of (5e^{2x})/(e^{2x)+11e^x+24}

解

\int \frac{5 e ^{2 x}}{e ^{2 x} + 11 e ^{x} + 24} d x

解

10 (\frac{1}{4} ln 44 e^{x} + 4 e^{2 x} + 96 + \frac{11}{20} (ln \frac{16}{5} + \frac{2}{5} e^{x} - ln \frac{6}{5} + \frac{2}{5} e^{x})) + C

解答ステップ

\int \frac{5 e ^{2 x}}{e ^{2 x} + 11 e ^{x} + 24} d x

定数を除く:

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

= 5 \cdot \int \frac{e ^{2 x}}{e ^{2 x} + 11 e ^{x} + 24} d x

u置換積分法を適用する

= 5 \cdot \int \frac{u}{u ^{2} + 11 u + 24} d u

平方完成する

u^{2} + 11 u + 24 : (u + \frac{11}{2})^{2} - \frac{25}{4}

= 5 \cdot \int \frac{u}{( u + \frac{11}{2} ) ^{2} - \frac{25}{4}} d u

u置換積分法を適用する

= 5 \cdot \int \frac{2 ( 2 v - 11 )}{4 v ^{2} - 25} d v

定数を除く:

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

= 5 \cdot 2 \cdot \int \frac{2 v - 11}{4 v ^{2} - 25} d v

拡張

\frac{2 v - 11}{4 v ^{2} - 25} : \frac{2 v}{4 v ^{2} - 25} - \frac{11}{4 v ^{2} - 25}

総和規則を適用する:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= 5 \cdot 2 (\int \frac{2 v}{4 v ^{2} - 25} d v - \int \frac{11}{4 v ^{2} - 25} d v)

\int \frac{2 v}{4 v ^{2} - 25} d v = \frac{1}{4} ln 4 v^{2} - 25

\int \frac{11}{4 v ^{2} - 25} d v = - \frac{11}{20} (ln \frac{2}{5} v + 1 - ln \frac{2}{5} v - 1)

= 5 \cdot 2 (\frac{1}{4} ln 4 v^{2} - 25 - (- \frac{11}{20} (ln \frac{2}{5} v + 1 - ln \frac{2}{5} v - 1)))

代用を戻す

= 5 \cdot 2 (\frac{1}{4} ln 4 (e^{x} + \frac{11}{2})^{2} - 25 - (- \frac{11}{20} (ln \frac{2}{5} (e^{x} + \frac{11}{2}) + 1 - ln \frac{2}{5} (e^{x} + \frac{11}{2}) - 1)))

簡素化

5 \cdot 2 (\frac{1}{4} ln 4 (e^{x} + \frac{11}{2})^{2} - 25 - (- \frac{11}{20} (ln \frac{2}{5} (e^{x} + \frac{11}{2}) + 1 - ln \frac{2}{5} (e^{x} + \frac{11}{2}) - 1))) : 10 (\frac{1}{4} ln 44 e^{x} + 4 e^{2 x} + 96 + \frac{11}{20} (ln \frac{16}{5} + \frac{2}{5} e^{x} - ln \frac{6}{5} + \frac{2}{5} e^{x}))

= 10 (\frac{1}{4} ln 44 e^{x} + 4 e^{2 x} + 96 + \frac{11}{20} (ln \frac{16}{5} + \frac{2}{5} e^{x} - ln \frac{6}{5} + \frac{2}{5} e^{x}))

定数を解答に追加する

= 10 (\frac{1}{4} ln 44 e^{x} + 4 e^{2 x} + 96 + \frac{11}{20} (ln \frac{16}{5} + \frac{2}{5} e^{x} - ln \frac{6}{5} + \frac{2}{5} e^{x})) + C

グラフ

人気の例

derivative of x^2+5x+4

\frac{d}{d x} (x^{2} + 5 x + 4)

derivative of 9.75+1.5x^3

\frac{d}{d x} (9.75 + 1.5 x^{3})

integral of 1-cos(4x)

\int 1 - cos (4 x) d x

derivative of 2e^{-2x}x-2e^{-2x}x^2

\frac{d}{d x} (2 e^{- 2 x} x - 2 e^{- 2 x} x^{2})

(sqrt(4-x^2))^'

(4 - x^{2})^{^{'}}