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(a) মান নির্ণয় কর ঃ

\int \frac{d x}{x (x^{4} - 1)}

\int^{e^{2}} \frac{d x}{x (1 + i n x)^{2}}

(a)

\frac{1}{4} i n (1 - x^{- 4}) + c

(b) 2/3

ANS : 1

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