1.(2/3)^2001×(1.5)^2000÷(﹣1)^2002=?
问题描述:
1.(2/3)^2001×(1.5)^2000÷(﹣1)^2002=?
(2/3)^2001×(1.5)^2000÷(﹣1)^2002=?
3(a^3+a^2-a-1)-2(a^3-a)
1(2/3)^2001×(1.5)^2000÷(﹣1)^2002=?
2 3(a^3+a^2-a-1)-2(a^3-a)\
答
(2/3)×(2/3)^2000×(1.5)^2000÷(﹣1)^2002
=(2/3)×(2/3×1.5)^2000÷1
=(2/3)×1
=2/3
(a^3+a^2-a-1)-2(a^3-a)
=a^3+a^2-a-1-2a^3+a
=-a^3+a^2-1