计算:
(1)
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(2)
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(3)
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(4)
计算:(1)(-1)10×2+(-2)3÷4;(2)(-5)3-3×(-(1)/(2))4;(3)(11)/(5)×((1)/(3)-(1)/(2))×(3)/
[题目]计算:-|||-(1) ((-1))^100times 5+((-2))^4div 4 ;-|||-(2) ((-3))^3-3times ((-dfr
填空-|||-dfrac (1)(3)times 3div dfrac (1)(3)times 3= __
计算:(1)(-0.02)times (-20)times (-5)times 4.5;(2)(-6.5)times (-2)div (-dfrac(1)(3)
1.计算:-|||-(1) times ((dfrac {1)(2)-dfrac (1)(3))}^2;-|||-(2) .7div (-dfrac (8)(1
(2016春• 无锡校级月考)计算 (1)((-a))^7div ((-a))^4times ((-a))^3(2)((-a))^7div ((-a))^4ti
12.试用向量证明不等式:-|||-sqrt ({{a)_(1)}^2+({a)_(2)}^2+({a)_(3)}^2}sqrt ({{b)_(1)}^2+({
[题目]-|||-计算:-|||-dfrac (1)(1times 2)+dfrac (2)(2times 4)+dfrac (3)(4times 7)+dfr
8.计算:-|||-(1) times (-5)-(-3)div dfrac (3)(128)-|||-(2) -7times (-3)times (-0.5)
3.浓度均为 .0times (10)^-2molcdot (L)^-1 的 ^2+ ^2+ 混合溶液,欲在-|||-=6.0 时,用 .02000molcdo