化简 :(4^(n+3) + 32^(n+1) ) / ( 2^(2n+1) + 2^(5) )可以把 a^(n)*b^(n)=(ab)^(n)

化简：1/(n+1)(n+2)+1/(n+2)(n+3)+1/(n+3)(n+4) 化简 :(4^(n+3) + 32^(n+1) ) / ( 2^(2n+1) + 2^(5) )可以把 a^(n)*b^(n)=(ab)^(n) 化简4n^3-6n^2-2n+3 （m-n)2(n-m)3(n-m)4化简 [3n(n+1)+n(n+1)(2n+1)]/6+n(n+2)化简 [3n(n+1)+n(n+1)(2n+1)]/6+n(n+2)化简 化简n分之n-1+n分之n-2+n分之n-3+.+n分之1 化简n分之n-1+n分之n-2+n分之n-3+.+n分之1 化简(n+1)(n+2)(n+3) 1/（m-n）-1/（m+n）-2n/（m^2+n^2)-4n^3/m^4+n^4)-8n^7/(m^8+n^8)-16n^15/(m^16+n^16)+32n^31/(n32-m32) a^3n+3-a^n+7分之a^n+4-a^3n 化简 (n十1)(n十2)(n十3)(n十4)十1化简 lim((2n+1)^5(n+10)^3)/((n^2-2n-3)^4)=32 lim(n+3)(4-n)/(n-1)(3-2n) lim(n^3+n)/(n^4-3n^2+1) 求最小值 ((n+2)(n+4))/(n(n+3)) (n-3)(n-2)(n-4)等于120 求n 化简16^n+2×4^n-1/8^2n×5^2n+4×2^n/5^2n+3×2^n+3