The first term of a G.P whose second term is 2 and sum to infinity is 8 will be

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Professor PC Thomas Classes · Answer

$\mathrm{ar}=2$ and $\frac{a}{1-r}=8$ $ \ \begin{aligned} & a=8(1-r) \ \Rightarrow & a^2=8(a-a r) \ 	ext { ie } & a^2=8(a-2) \end{aligned} $