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Need Solution for R.D.Sharma Maths Class 12 Chapter 18 Indefinite Integrals Exercise Revision Exercise Question 96 Maths Textbook Solution.

Answers (1)

Answer:

e^{\mathrm{x}}\left[x^{2}+1\right]+c

Hint:

You must know about integration of I and II.(ILATE)

Given:

\int(x+1)^{2} e^{x} d x

Solution:

\int\left(x^{2}+1+2 x\right) e^{x} d x

   \int\left(x^{2} e^{x}+e^{x} 1+2 x e^{x}\right) d x

e^{x}\left(x^{2}-2 x+2\right)+e^{x}+e^{x}(2 x-2)            \int 1.11 d x=I \int 11 d x-\int \frac{d}{d x} I \int \text { IIdx } \quad\left(\int e^{x}=e^{x}\right)

e^{x}\left[x^{2}-2 x+2+1+2 x-2\right]+c\left(\int e^{x}=e^{x}\right)

e^{x}\left[x^{2}+1\right]+c

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