Tính
tổngtinh tong:$S=\left ( \frac{C^{0}_{n}}{1} \right )^{2}+\left ( \frac{C^{1}_{n}}{2} \right )^{2}+\left ( \frac{C^{2}_{n}}{3}\right )^{2}+....+\left ( \frac{C^{n}_{n}}{n+1} \right )^{2}$
Nhị thức Niu-tơn
giai giup minh
?tinh tong:$S=\left ( \frac{C^{0}_{n}}{1} \right )^{2}+\left ( \frac{C^{1}_{n}}{2} \right )^{2}+\left ( \frac{C^{2}_{n}}{3}\right )^{2}+....+\left ( \frac{C^{n}_{n}}{n+1} \right )^{2}$
Nhị thức Niu-tơn
Tính
tổngtinh tong:$S=\left ( \frac{C^{0}_{n}}{1} \right )^{2}+\left ( \frac{C^{1}_{n}}{2} \right )^{2}+\left ( \frac{C^{2}_{n}}{3}\right )^{2}+....+\left ( \frac{C^{n}_{n}}{n+1} \right )^{2}$
Nhị thức Niu-tơn