Which term of the series.
`1+1/2+1/4+1/8+`_______is `1/(2048)`?

Which term of the sequence 24, 23 1/4, 22 1/2, 21 3/4, ….. is the first negative term ?

Which term of the sequence 20 ,\ \ 19 1/4,\ \ 18 1/2,\ \ 17 3/4,\ dot is the first negative term?

Find the 5^(th) term of the G.P , 1/2 , 1/4 ,1/8 ....

Which term of the sequence : 20,19 1/4, 18 1/2, 17 3/4 , ..... is the first negative term ?

The sum to n terms of the series (1)/(2) + (3)/(4) + (7)/(8) + (15)/(16)+…. is equal to :

Find the sum of n terms \ of the series: 1/(1. 2)+1/(2. 3)+1/(3. 4)+dot+ 1/n dot((n+1))

Sum of infinite terms of the series cot^(-1) ( 1^(2) + 3/4) + cot^(-1) ( 2^(2) + 3/4) + cot^(-1) ( 3^(2) + 3/4) + ... is

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). n-1+2^(-n) (c). n+2^(-n)-1 (d). 2^n+1

Find the sum to n terms of the series : (x+1/x)^2+(x^2 + 1/x^2)^2+ (x^3 + 1/x^3)^2+ ...... .

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