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\frac{d}{d x} {\frac{x^{2}}{x^{2} - 4}}

এর মান কত ?

\frac{8 x}{(x^{2} - 4)^{2}}

- \frac{8 x}{(x^{2} - 4)^{2}}

\frac{4 x}{(x^{2} - 8)^{2}}

\frac{4 x}{(x^{2} + 8)^{2}}

ANS : 2

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