If 1+(1+2)/2+(1+2+3)/3+..... to n terms ...

If `1+(1+2)/2+(1+2+3)/3+.....` to n terms is S. Then , S is equal to

If 1+(1+2)/2+(1+2+3)/3+..... to n terms is S. Then , S is equal to
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If the sum of first 16 terms of the series s=cot^(-1)(2^2+1/2)+cot^(-1...
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If S=(2^(2)-1)/(2)+(3^(2)-2)/(6)+(4^(2)-3)/(12)+.... ( up to 10 terms)...
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If 1+(1+2)/2+(1+2+3)/3+......\ n terms is S.t Then, S is equal to a. (...
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If alpha(!=1) is a nth root of unity then S=1+3 alpha+5 alpha^(2)+.......
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If 1+(1+2)/(2)+(1+2+3)/(3)+.... to n terms is S.Then,s is equal to
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If S =(y-1-1/2(y-1)^(2)+1/3(y-1))^(3)/(a-1-1/2(a-1)^(2)+1/3(a-1)^(3) …...
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एक गुणोत्तर श्रेणी के n , 2n और 3n पदों के योगफल क्रमशः S (1 ), S (2 )...
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माना की किसी समान्तर श्रेणी के n , 2n तथा 3n पदों का योगफल क्रमशः S (1...
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