Forgot password? New user? Sign up
Existing user? Log in
If
∑n=1∞cosnn\sum_{n=1}^{\infty} \frac{\cos n}{n}n=1∑∞ncosn
can be expressed in the form −12ln(a−bcosc)-\frac 12 \ln(a-b\cos c)−21ln(a−bcosc), where a,b,a,b,a,b, and ccc are positive integers, find a+b+ca+b+ca+b+c.
Problem Loading...
Note Loading...
Set Loading...