JEE Main 2019 — Math solution | Fundamenthol

JEE Main2019Math

Q.

If $f (x) = \int \frac{5 x ^{8} + 7 x ^{6}}{( x ^{2} + 1 + 2 x ^{7} ) ^{2}} d x, (x \geq 0),$ and f(0) = 0, then the value of f(1) is

A
$\frac{1}{2}$
B
$\frac{1}{4}$
C
$- \frac{1}{2}$
D
$- \frac{1}{4}$

Solution

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