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I=∫28x+13x+13+11−x3dxI=\int_{2}^{8}\frac{\sqrt[3]{x+1}}{\sqrt[3]{x+1}+\sqrt[3]{11-x}}dx is equal to :

Solution

✅ Correct Option: 4

Here a+b=2+8=10a+b=2+8=10, and replacing xx by 10−x10-x turns x+1x+1 into 11−x11-x, so f(x)+f(10−x)=1f(x)+f(10-x)=1.

Hence 2I=∫281 dx=62I=\int_2^8 1\,dx=6, giving I=3I=3.

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