来自郭建强的问题
【1.(2+1)(2²+1)······(2的2n方+1)2.100²-99²+98²-97²····+2²-1²】
1.(2+1)(2²+1)······(2的2n方+1)
2.100²-99²+98²-97²····+2²-1²
1回答
2020-04-28 15:04
【1.(2+1)(2²+1)······(2的2n方+1)2.100²-99²+98²-97²····+2²-1²】
1.(2+1)(2²+1)······(2的2n方+1)
2.100²-99²+98²-97²····+2²-1²
1,(2-1)(2+1)(2²+1)······(2的2n方+1)=(2²-1)······(2的2n方+1)=2的4n方-12.100²-99²+98²-97²····+2²-1²=(100+99)(100-99)+(98+97)(98...