计算:-4(a^2n-1)^3·(b^2)^3n+3(b^3)^2n·(a^3)^2n-1
a^(n+1)b^n-4a^(n+2)+3ab^n-12a^2
分式计算:(b^3n-1 )*c/(a^2n+1)除以 (b^3n-2)/(a^2n)
计算:b^(3n-1)/a^(2n-1)×c÷b^(3n-2)/a^2n
计算:(2a-3b)^(4n+1)*(3b-2a)^(6n-1)
计算 :(-0.5a^3b^2)(-4a^n+1 b^n c) 急
a(n+1)=2an-a(n-1) 3bn-b(n-1)=n
计算:[-1/4a^(3-n)b^(m-1)]^2·(4a^(3+n)b)^2
计算:{-1/4a^(3-n)b^(m-1)}^2·(4a^(3+n)b)^2
已知n为大于1的自然数,计算b^3n-1c^3/a^2n+1 *a^2n/b^3n-2
已知1/n^2+3n=A/n+B/n+3,求ab?
(a-b)(a^(n-1)-b^(n-1))=(a-b)^2(a^(n-2)+a^(n-3)b+……+ab^(n-3)+
计算:(3a^n+2+6a^n+1-9^n)÷3a^n-1