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CBSE Class 12 Math 2020 Outside Delhi Set 1 Solved Paper

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Question : 19 of 36
Marks: +1, -0
If ∫0a  dx1+4x2=  π8\int\limits_{0}^{a} \;\frac{dx}{1+4x^2}=\;\frac{\pi}{8}, then find the value of a.
OR
Find ∫  dxx+x\int\;\frac{dx}{\sqrt{x}+x}
Solution:     👈: Video Solution
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