`(1/1.4+1/4.7+1/7.10+1/10.13+1/13.16)` के बराबर है।

((1)/(1.4 )+ (1)/(4.7 ) +(1)/(7.10 )+(1)/(10.13 )+(1)/(13.16)) is equal to

3/13+7/13+1/13

(1)/(1 . 4 . 7)+(1)/(4 .7 . 10)+(1)/(7 . 10 . 13)+.. . to n terms =

(1)/(1*4*7)+(1)/(4*7*10)+(1)/(7*10*13)+

((1)/(1xx4)+(1)/(4xx7)+(1)/(7xx10)+(1)/(10xx13)+(1)/(13xx16))=?

What is the sum of 1 1/2+4 1/6+7 1/12+10 1/20 .....up to 20 terms? 1 1/2+4 1/6+7 1/12+10 1/2 .....के 20 पदों तक का योग क्या है?

Sum to n terms of the series (1)/(1.4.7) + (1)/(4.7.10) + (1)/(7.10.13) +…….