The sum of the series 1-2 - 3- 2-2-3 - 4- 22-3-4 - 5- 23- to n terms is

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nth Term of A.P

The sum of th...

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The sum of the series $\frac{1}{2 \times 3} \times 2 + \frac{2}{3 \times 4} \times 2^{2} + \frac{3}{4 \times 5} \times 2^{3} + \dots \dots \dots$ to n terms is

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1 + \frac{2}{3} + \frac{2}{2^{2}} + \frac{4}{2^{3}} + . . . .

n

\frac{2}{1 \times 2} + \frac{5}{2 \times 3} \times 2 + \frac{10}{3 \times 4} \times 2^{2} + \frac{17}{4 \times 5} \times 2^{3} + - - - -

- -

9

n

\frac{3}{1.2} . \frac{1}{2} + \frac{4}{2.3} {(\frac{1}{2})}^{2} + \frac{5}{3.4} {(\frac{1}{2})}^{3} + . . .

\frac{3}{1.2} (\frac{1}{2}) + \frac{4}{2.3} {(\frac{1}{2})}^{2} + \frac{5}{3.4} {(\frac{1}{2})}^{3} + . . . . . . . .

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