kartikeyrana

2 Questions
0 Answers

0

675

2

+8

sequence and series

sum to n terms of the series 1/2+3/4+7/8+15/16.... is? solve it for me please

[answer: (2^-n)+n-1]

kartikeyrana Jul 14, 2016

0

662

3

+8

sequence and series

if a,b,c,d are in G.P then the value of (a^2 + b^2 + c^2)(b^2 + c^2 + d^2) is: 1.(ab + ac + bc)^2
2.(ac + cd + ad)^2
3.(ab + bc + cd)^2
4.(ab + bc + ad)^2

kartikeyrana Jul 14, 2016