4.1 級数の定義

1.

(a) $ \displaystyle{\frac{10}{3}}$ (b) $ \displaystyle{\frac{5}{6}}$ (c) $ \displaystyle{-\frac{3}{2}}$

2.

(a) $ \displaystyle{\frac{10}{7}}$ (b) $ \displaystyle{\frac{159}{59}}$ (c) $ \displaystyle{1}$