Evaluate if it is convergent! a) ∑n=1∞2n+3n5n\displaystyle\sum_{n=1}^{\infty}{\frac{{2^n}+{3^n}}{5^n}}n=1∑∞5n2n+3n b) ∑n=1∞7n−13n\displaystyle\sum_{n=1}^{\infty}{\frac{7^{n-1}}{3^n}}n=1∑∞3n7n−1 c) ∑n=1∞nn23\displaystyle\sum_{n=1}^{\infty}{\frac{n}{\sqrt[3]{n^2}}}n=1∑∞3n2n