Questions
How many terms are to be added to make the sum 52 in the series ?
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a
13
b
15
c
14
d
16
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Correct option is A
Sn=52⇒n22−8+n−12=52⇒n(2n−18)=104⇒n(n−9)=52⇒n=13Similar Questions
The sum of terms of an is The number of term which equals 159, is
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