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সূত্রের সাহায্যে বর্গ নির্ণয় কর: $x^2+\frac2{y^2}$

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সূত্রের সাহায্যে বর্গ বরা হলো :

$x^2+\frac2{y^2}$ এর বর্গ

$=\left(x^2+\frac2{y^2}\right)^2$

$=\left(x^2\right)^2+2\cdot x^2\cdot\frac2{y^2}+\left(\frac{2}{y^2}\right)^2$

$=x^4+\frac{4x^2}{y^2}+\frac{4}{y^4}$ [Answer]

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