10²-9²+8²-7²+6²-5²+4²-3
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:综合作业 时间:2024/07/11 16:28:23
10²-9²+8²-7²+6²-5²+4²-3²+2²-1²
![10²-9²+8²-7²+6²-5²+4²-3](/uploads/image/z/163764-36-4.jpg?t=10%26%23178%3B%EF%BC%8D9%26%23178%3B%EF%BC%8B8%26%23178%3B%EF%BC%8D7%26%23178%3B%EF%BC%8B6%26%23178%3B-5%26%23178%3B%2B4%26%23178%3B-3%26%23)
100-81-49-54-25-16-9-4-1 再答: -69
10²-9²+8²-7²+6²-5²+4²-3
10²-9²+8²-7²+6²-5²+4²-3
10²-9²+8²-7²+6²-5²+4²-3
10²-9²+8²-7²+6²-5²+4²-3
简便运算:10²-9²+8²-7²+6²-5²+4²
(1²+3²+5²+...+99²)-(2²+4²+6
(1-2²)+3²-4²+5²-6²+7²-8²+
1²-2²+3²-4²+5²-6²+7²-8
计算50²-49²+48²-47²+…+4²-3²+2
5X²-3Y²-(X²-Y²)-2(X²+4Y²)其中|X+
2²/1*3+4²/3*5+6²/5*7+8²/7*9+10²/9*1
3²/2×4+5²/4×6+7²/6×8+9²/8×10+11²/10