Register to reply

Sum of series

by cgchayan
Tags: series
Share this thread:
cgchayan
#1
Sep11-10, 09:44 AM
P: 4
what will be the sum of this series?
[tex]\Sigma[/tex] nCr . 2r
where r = 0 to n
Phys.Org News Partner Science news on Phys.org
Fungus deadly to AIDS patients found to grow on trees
Canola genome sequence reveals evolutionary 'love triangle'
Scientists uncover clues to role of magnetism in iron-based superconductors
l'H˘pital
#2
Sep11-10, 12:56 PM
P: 256
Hint:
[tex]
\sum_{r=0}^n _nC_r \cdot 2^r = \sum_{r=0}^n _nC_r \cdot 2^r \cdot 1^{n-r}
[/tex]
cgchayan
#3
Sep11-10, 03:23 PM
P: 4
thanx

Sherard
#4
Sep15-10, 02:22 AM
P: 3
Sum of series

thanks for sharing information....


Register to reply

Related Discussions
Can anyone explain this regarding to fourier series and bessel series expansion? Differential Equations 5
Convergence/Divergence of Given Series Using Alternating Series test. Calculus & Beyond Homework 2
Complex power series to calculate Fourier series Calculus & Beyond Homework 1
Divergent Harmonic Series, Convergent P-Series (Cauchy sequences) Calculus & Beyond Homework 1
Calculating the wavelength for series limit for the Paschen series Introductory Physics Homework 6