Discussion Forum : Instrumentation
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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