JEE MAIN - Mathematics Hindi (2019 - 9th January Evening Slot - No. 10)
यदि $$f(x)=\int \frac{5 x^{8}+7 x^{6}}{\left(x^{2}+1+2 x^{7}\right)^{2}} d x,(x \geq 0)$$, तथा $$f(0)=0$$ है, तो $$f(1)$$ का मान है-
$$-\frac{1}{2}$$
$$-\frac{1}{4}$$
$$\frac{1}{2}$$
$$\frac{1}{4}$$
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