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If 1^2+2^2+3^2+n^2-1015 then the value o...

If `1^2+2^2+3^2+n^2-1015` then the value of n is equal to (A) 13 (B) 14 (C) 15 (D) none of these

A

15

B

14

C

13

D

16

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B
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MCGROW HILL PUBLICATION-PROGRESSIONS-EXERCISES LEVEL-1 (Single Correct Answer Type Questions)
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  18. Find the sum series: tan^-1 (1/3)+tan^-1 (1/7)+tan^-1(1/13)+…to oo

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  19. FInd the sum of infinite terms of the series 1/(1.2.3)+1/(2.3.4)+1/(3...

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  20. If n!, 3n! and (n-1)! are in G.P then n!, 5n! and (n+1)! are in

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