The rth term of the series 2(1/2)+1(7/13...

The rth term of the series `2(1/2)+1(7/13)+1(1/9)+20/23+.....` is

A

`(20)/(5r+3)`

B

`(20)/(5r-3)`

C

`20(5r+3)`

D

`(20)/(5r^(2)+3)`

Verified by Experts

The correct Answer is:

A

Similar Questions

Explore conceptually related problems

Find the sum to n terms of the series , (1)/(1.2)+(1)/(2.3)+(1)/(3.4)+.... ?

Sum of the first n terms of the series 1/2+3/4+7/8+(15)/(16)+......... is equals to (a). 2^n-n-1 (b). 1-2^(-n) (c). n+2^(-n)-1 (d). 2^n+1

Sum to n terms of the series 1+3+7+13+.. .=

The 99^(th) term of the series 2+7+14+23+34+.. ..

Find the sum to n terms of the series (1)/(1xx2) +(1)/(2xx3)+(1)/(3xx4) + . . . . . .

Sum to n terms of the series 1+(1+2)+(1+2+3)+.. ..

The n^(th) term of the series 1+3+7+13+21+. .. . . . is 9901. The value of n is

The n^(th ) term of the series 1+4+13+40+.. . is

The sum of n terms of the series : (1)/( 1.2.3.4) + ( 1)/( 2.3.4.5) + ( 1) / ( 3.4.5.6.)+"......." is :

The sum of n terms of the series 1+(1+3)+(1+3+5)+.. .. .. is