Question
${4^{1/3}}{.4^{1/9}}{.4^{1/27}}...........\infty $ का मान होगा
$\therefore $ $S = {4^{1/3 + 1/9 + 1/27}}......\infty $
$ \Rightarrow $ $S = {4^{\left( {\frac{{1/3}}{{1 - 1/3}}} \right)}} = {4^{\frac{{1/3}}{{2/3}}}}$$ $
$\Rightarrow $ $S = {4^{1/2}}$
$ \Rightarrow $ $S = 2$.
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