If \int_{0}^{ {\a}} \frac{ {\d} x}{1+4 x^2}=\frac{\pi}{8}, then find the value of a. OR Find \int {d x}/{\sqrt{x}+x}

CBSE Class 12 Math 2020 Outside Delhi Set 1 Solved Paper

Question : 19 of 36

Marks: +1, -0

∫↙{0}↖{ {\a}} \;{ {\d} x}/{1+4 x^2}=\;{π}/{8}

, then find the value of a.
OR
Find

∫ \;{d x}/{{√{x}}+x}

Solution:

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