Convergence of \sum1/(n^3*(sin^2 n)) Series

abhi@maths
Messages
2
Reaction score
0
1. Find whether the following series converges or diverges or is oscillatory
\sum1/(n^3*(sin^2 n))
 
Last edited:
Physics news on Phys.org
\sum (1/n^3) converges
sin^2 n is always positive!

try to combine these two facts together
 
Thread 'Have I solved this structural engineering equation correctly?'
Hi all, I have a structural engineering book from 1979. I am trying to follow it as best as I can. I have come to a formula that calculates the rotations in radians at the rigid joint that requires an iterative procedure. This equation comes in the form of: $$ x_i = \frac {Q_ih_i + Q_{i+1}h_{i+1}}{4K} + \frac {C}{K}x_{i-1} + \frac {C}{K}x_{i+1} $$ Where: ## Q ## is the horizontal storey shear ## h ## is the storey height ## K = (6G_i + C_i + C_{i+1}) ## ## G = \frac {I_g}{h} ## ## C...

Similar threads

Back
Top