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find-I-e-arcsinx-dx-




Question Number 30508 by abdo imad last updated on 22/Feb/18
find I= ∫  e^(arcsinx) dx .
$${find}\:{I}=\:\int\:\:{e}^{{arcsinx}} {dx}\:. \\ $$
Commented by sma3l2996 last updated on 24/Feb/18
I=∫e^(arcsinx) dx  u=e^(arcsinx) ⇒u′=(e^(arcsinx) /( (√(1−x^2 ))))  v′=1⇒v=x  I=xe^(arcsinx) −∫(x/( (√(1−x^2 ))))e^(arcsinx) dx+c_1   u=e^(arcsinx) ⇒u′=(e^(arcsinx) /( (√(1−x^2 ))))  v′=(x/( (√(1−x^2 ))))⇒v=−(√(1−x^2 ))  I=xe^(arcsinx) +(√(1−x^2 ))e^(arcsinx) −∫e^(arcsinx) dx+c_2   2I=(x+(√(1−x^2 )))e^(arcsinx) +c_2   I=(1/2)(x+(√(1−x^2 )))e^(arcsinx) +C
$${I}=\int{e}^{{arcsinx}} {dx} \\ $$$${u}={e}^{{arcsinx}} \Rightarrow{u}'=\frac{{e}^{{arcsinx}} }{\:\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }} \\ $$$${v}'=\mathrm{1}\Rightarrow{v}={x} \\ $$$${I}={xe}^{{arcsinx}} −\int\frac{{x}}{\:\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }}{e}^{{arcsinx}} {dx}+{c}_{\mathrm{1}} \\ $$$${u}={e}^{{arcsinx}} \Rightarrow{u}'=\frac{{e}^{{arcsinx}} }{\:\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }} \\ $$$${v}'=\frac{{x}}{\:\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }}\Rightarrow{v}=−\sqrt{\mathrm{1}−{x}^{\mathrm{2}} } \\ $$$${I}={xe}^{{arcsinx}} +\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }{e}^{{arcsinx}} −\int{e}^{{arcsinx}} {dx}+{c}_{\mathrm{2}} \\ $$$$\mathrm{2}{I}=\left({x}+\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }\right){e}^{{arcsinx}} +{c}_{\mathrm{2}} \\ $$$${I}=\frac{\mathrm{1}}{\mathrm{2}}\left({x}+\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }\right){e}^{{arcsinx}} +{C} \\ $$

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