【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
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 14:47:31
![【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](/uploads/image/z/1273903-7-3.jpg?t=%E3%80%90%E6%95%B0%E5%AD%A6%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95+%281%29+%28-9%29%5E3%2A%28-2%2F3%29%5E3%2A%281%2F3%29%5E3%EF%BC%882%EF%BC%89-8%5E2001%2A%28-0.125%29%5E2000%2B%28-0.25%29%5E3%2A2%5E6%283%29+%280.5%2A11%2F3%29%5E10%2A%28-2%2A3%2F11%29%5E1%EF%BC%884%29+%28a-1%29%28a%5E4%2Ba%5E3%2Ba%5E2%2Ba%2B1%29%283%29%280.5%2A11%2F3%29%5E10%2A%28-2%2A3%2F11%29%5E11)
【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
【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
【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
(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)²ººº+(-1/4×4)³
=-8-1
=-9
(3) (0.5*11/3)^10*(-2*3/11)^10
=(-1/2×11/3×2×3/11)¹º
=(-1)¹º
=1
(4) (a-1)(a^4+a^3+a^2+a+1)
=a^5+a^4+a^3+a^2+a-a^4-a^3-a^2-a-1
=a^5-1