Let $A$ be the sum of the first $20$ terms and $B$ be the sum of the first $40$ terms of the series $1$ + $2.2^2$ + $3^2$ + $2.4^2$ + $5^2+2.6^2$ +......... Find the value of $A$.
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Let $A$ be the sum of the first $20$ terms and $B$ be the sum of the first $40$ terms of the series $1$ + $2.2^2$ + $3^2$ + $2.4^2$ + $5^2+2.6^2$ +......... Find the value of $A$.