(1)/(15),(1)/(12),(1)/(10),...," upto "11" terms "

Find the sum of the following APs : (1)/(15), (1)/(12), (1)/(10),.. , to 11 terms

Find the sum of the following A.P. 's : (i) 2, 7,12, ..... to 10 terms. (ii) (1)/(15),(1)/(12),(1)/(10),....... to 11 terms.

Find the sum of the following A.P. 's : (i) 2, 7,12, ..... to 10 terms. (ii) (1)/(15),(1)/(12),(1)/(10),....... to 11 terms.

Find the sum of the following A. P. s: (1)/(15) ,(1)/(12), (1)/(10),…, to 11 terms

Find the sum of following Aps. 1/(15),(1)/(12),(1)/(10),..... to 11 terms.

Find the sum of the following Aps: (i) 2, 7, 12, …….., to 10 terms. (ii) -37, -33, -29, …….., to 12 terms. (iii) 0.6, 1.7, 2.8,….., to 100 terms (iv) (1)/(15), (1)/(12),(1)/(10) ,……,to 11 terms

(1)/(2*5)+(1)/(5*8)+(1)/(8*11)+ … upto n terms =

The sum of the series: 1+(1)/(1+2)+(1)/(1+2+3)+.... upto 10 terms,is :