Questions
If the sum of the series is finite, then
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a
x>5
b
-5
c
x<5/2
d
x>5/2
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Correct option is A
We can rewrite the series as1+1+5x+5x2+5x3+…We can sum up this series if 5x<1⇔|x|>5Similar Questions
Sum of an infinite G.P. is 2 and sum of their cubes is 24, then 5th term of the G.P. is
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