应用有效数字计算规则计算下列结果:(1) 5123.98 - 40.456 + 7.8 = (2) (sqrt(100.00))/(0.326 + 9.674)
根据有效数字运算规则计算下列各题。(1)327.0+0.18(2)2.5times 10^3-27(3)3.71div (1times 10^3)(4)(178
计算: (1)((-1))^10times 2+((-2))^3div 4; (2)((-1))^10times 2+((-2))^3div 4; (3)((-
根据有效数字运算规则计算下列结果:(1) (2) (3) (4) (5)7.根据有效数字运算规则计算下列结果:(1)(2)(3)(4)(5)
计算:(1)(-0.02)times (-20)times (-5)times 4.5;(2)(-6.5)times (-2)div (-dfrac(1)(3)
[题目]计算:-|||-(1) ((-1))^100times 5+((-2))^4div 4 ;-|||-(2) ((-3))^3-3times ((-dfr
计算:(1)(sqrt(5))2;(2)(-sqrt(0.2))2;(3)(sqrt((2)/(7)))2;(4)(5sqrt(5))2;(5)sqrt((-1
(2016春• 无锡校级月考)计算 (1)((-a))^7div ((-a))^4times ((-a))^3(2)((-a))^7div ((-a))^4ti
8.计算:-|||-(1) times (-5)-(-3)div dfrac (3)(128)-|||-(2) -7times (-3)times (-0.5)
已知298.15K 时,将电极 /(Cd)^2+(1.00times (10)^-4molcdot (L)^-1) 和 |(Fe)^2+(1.00molcdot