-3的2次方x1.2的2次方÷(0.3)的2次方十(-3分之1)的2次方x(-3)的2次方÷(-1?

2024-11-23 00:04:07
推荐回答(1个)
回答1:


-1²-| 2-5 |  ÷(-3)×(1-1/3)

=-1-3÷(-3)×2/3

= -1+1×2/3

= -1+2/3

= -1/3