

tính
[tex](C_{2018}^{0})^{2} - (C_{2018}^{1})^{2} + (C_{2018}^{2})^{2}-...- (C_{2018}^{2017})^{2} + (C_{2018}^{2018})^{2}[/tex]
[tex](C_{2018}^{0})^{2} - (C_{2018}^{1})^{2} + (C_{2018}^{2})^{2}-...- (C_{2018}^{2017})^{2} + (C_{2018}^{2018})^{2}[/tex]