03. Which term of the series 1- 1/3 + 1/ 9 - 1 /27 +.... is 1/729 (a) 4 th (b) 5 th (c) 6 (th) ( d)7th
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Step-by-step explanation:
Let, the first term of the GP be and common ratio be
The general term of the GP be
Now, for the given GP, and
let, be the nth term
so,
Thus, the 7th term of the given gp is 1/729
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