Find the sum to n terms of the series 10+84+ 734 + .....

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Question

Find the sum to n terms of the series 10+84+ 734 + .....

Options:

A . [9(9n + 1)]/10 + 1

B . [9(9n - 1)]/8 + 1

C . [9(9n - 1)]/8 + n

D . [9(9n - 1)]/8 + n2

Answer: Option D

-NA-

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