计算 :(-0.5a^3b^2)(-4a^n+1 b^n c) 急
计算 :(-0.5a^3b^2)(-4a^n+1 b^n c) 急
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[(a^m+1)(b^n)(c^2)]^3
计算:(-3a^n+1b^n)*(1/3ab)*(-a^2c)
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
计算:(2a-3b)^(4n+1)*(3b-2a)^(6n-1)
恒等式计算1+2+3+4+...+n=(a+b+c+d)²=
b^3n-1 c^2/a^2n+1×a^2n-1/b^3n-2=
b^3n-1/a^2n-1×c÷b^3n-2/a^2n
a^(n+1)b^n-4a^(n+2)+3ab^n-12a^2
计算a-ab/a+b(a/a-b+b/b-a)和1-m-n/m+2n÷m²-n²/m²+4