The back of my book says it converges, but each test I've tried says the summation diverges. Can someone help me to know if the following converges?
$$\sum_{n=1}^\infty (n+1)\left(\frac{(1+\sin(nπ/6))}{3}\right)^n $$
The back of my book says it converges, but each test I've tried says the summation diverges. Can someone help me to know if the following converges?
$$\sum_{n=1}^\infty (n+1)\left(\frac{(1+\sin(nπ/6))}{3}\right)^n $$