计算(181²-61²)÷(302²-182²)谢谢

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 10:52:28
计算(181²-61²)÷(302²-182²)谢谢

计算(181²-61²)÷(302²-182²)谢谢
计算(181²-61²)÷(302²-182²)谢谢

计算(181²-61²)÷(302²-182²)谢谢
(181²-61²)÷(302²-182²)=(181+61)(181-61)÷(302+182)(302-182)=242*120÷484*120=1/2