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I = \int^{π / 4} 0 \frac{\sin^{2} θ}{\sin^{4} θ + \cos^{4} θ} d θ

এর মান কোনটি?

\frac{π}{3}

\frac{1}{4}

\frac{π}{5}

\frac{π}{4}

\frac{π}{6}

ANS : 4

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