Find: `(4-1/n)+(7-2/n) +(10-3/n) ...` upto n terms

Find the sum (1-1/n)+(1-2/n)+(1-3/n) +........upto n terms.

(1-1/n) + (1 - 2/n) + (1 - 3/n)+ …… upto n terms = ?

Find the sum (i) 1+(-2)+(-5)+(-8)+ … +(-236) (ii) (4-(1)/(n))+(4-(2)/(n))+(4-(3)/(n))+ … upto n terms. (iii) (a-b)/(a+b)+(3a-2b)/(a+b)+(5a-3b)/(a+b)+ … to 11 terms.

Find the sum (i) 1+(-2)+(-5)+(-8)+ … +(-236) (ii) (4-(1)/(n))+(4-(2)/(n))+(4-(3)/(n))+ … upto n terms. (iii) (a-b)/(a+b)+(3a-2b)/(a+b)+(5a-3b)/(a+b)+ … to 11 terms.

Find the sum, (i) 4-(1)/(n)+4-(2)/(n)+4-(3)/(n) …………upto n terms (ii) 1+(-2)+(-5)+….+(-236) .

The odd value of n for which 704 + 1/2 (704) + 1/4 (704) + ... upto n terms = 1984 - 1/2 (1984) + 1/4 ( 1984) - .... upto n terms is :

Find the sum of 1^1 n + 2^2 (n - 1) + 3^2 (n - 2) + 4^2 (n -3) ……upto 'n' terms.

2.4 + 4.7 + 6.10+ …. upto (n-1) terms=