3.8-1÷(0.75+1⼀3)×1又3⼀4用简便运算怎么算?

2024-12-04 15:27:39
推荐回答(3个)
回答1:

3.8-1÷(0.75+1/3)×1又3/4
=3.8-1÷(3/4+1/3)x7/4
=3.8-1÷13/12x7/4
=3.8-12/13x7/4
=3.8-21/13
=3又4/5-1又8/13
=2又12/65

回答2:

脱式计算
3.8-1÷(0.75+1/3)x1又3/4
=3.8-1÷13/12x7/4
=3.8-12/13x7/4
=3.8-21/13
=2又12/65

回答3:

[最佳答案]做题过程如下图所示: 先求出面积后进行积分在计算体积。 微积分是高等数学中研究函数的微分(Differentiation)、积分(Integration)以及有关概念和应用的数学...