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