问题标题:
【数学简便方法(1)(-9)^3*(-2/3)^3*(1/3)^3(2)-8^2001*(-0.125)^2000+(-0.25)^3*2^6(3)(0.5*11/3)^10*(-2*3/11)^1(4)(a-1)(a^4+a^3+a^2+a+1)(3)(0.5*11/3)^10*(-2*3/11)^11
问题描述:
【数学简便方法
(1)(-9)^3*(-2/3)^3*(1/3)^3
(2)-8^2001*(-0.125)^2000+(-0.25)^3*2^6
(3)(0.5*11/3)^10*(-2*3/11)^1
(4)(a-1)(a^4+a^3+a^2+a+1)
(3)(0.5*11/3)^10*(-2*3/11)^11
代建鹏回答:
(1)(-9)^3*(-2/3)^3*(1/3)^3=[-9×(-2/3)*(1/3)]³=2³=8(2)-8^2001*(-0.125)^2000+(-0.25)^3*2^6=-8²ºº¹×(-1/8)²ººº+(-1/4)³×4³=-8×(8×1/8)...
曹洪权回答:
(3)(0.5*11/3)^10*(-2*3/11)^11【呵呵,对不起,打错了】
代建鹏回答:
(3)(0.5*11/3)^10*(-2*3/11)^11=(-1/2×11/3×2×3/11)¹º×(-2×3/11)=(-1)¹º×(-2×3/11)=-6/11
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