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যদি

\frac{\log_{k} (1 + x)}{\log_{k}} = 2

হলে x এর মান কত?

\frac{\sqrt{5}}{2}

\frac{2 + \sqrt{5}}{2}

\frac{1 \sqrt{5}}{2}

\sqrt{\frac{5}{2}}

ANS : 3

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