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যদি

\cos x = \frac{4}{5}

0 \leq x \leq \frac{π}{2}

হয়, তবে tan x = ?

\frac{7}{24}

\frac{7}{25}

\frac{3}{4}

\frac{24}{25}

কোনোটিই নয়

ANS : 3

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