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Need solution for RD Sharma maths class 12 chapter 19 Definite Integrals exercise Multiple choice question 44

Answers (1)

Answer:

\int_{a}^{b} f(x+c) d x

Hint:

To solve this \int_{a}^{b} f(x) d x   formula is used.

Given:

\int_{a+c}^{b+c} f(x) d x

Explanation:

\int_{a+c}^{b+c} f(x) d x

\begin{aligned} &=f[x]_{a+c}^{b+c} \\ \\ &=f(b+c)-f(a+c) \end{aligned}

Now, solving option (b),

\begin{aligned} &\int_{a}^{b} f(x+c) d x \\\\ &=[f(x+c)]_{a}^{b} \\\\ &=f(b+c)-f(a+c) \end{aligned}

Hence, option (b) is correct.

 

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