若(x^n)^2=8.(x^n)^4=?(x^n)^6=?

若(x^n)^2=8.(x^n)^4=?(x^n)^6=? f(x)=e^x-x 求证(1/n)^n+(2/n)^n+...+(n/n)^n (x^4n+16)(x^n-2)(x^2n+4)(x^n+2)= 若A={x|x=2n,n∈N},B={x|x=3n,n∈N},C={x|x=4n-2,n∈N}则(A∪C)∩B= 若A={x|x=2n,n∈N},B={x|x=3n,n∈N},C={x|x=4n-2,n∈N}则(A∪C)∩B= 若x^3n=2,试求x^6n+x^4n乘以x^5n的值 若x^2n=4,求x^6n和(3x^3n)^2 若(x-4)(x-m)=x^2-x+n则n,m= (8x^n+1-3x^n-1)-2(-x+9x^n+1-4x^n)= 设n为正整数,且x^3n=4,求x^2n·x^4n+x^4n·x^5n 若(x^2)^n=x^10则n等于? 若x^n=2,y^n=3则1 .(xy)^3n (3x^3n)^2+4(x^2)^2n1 .(xy)^3n 2.(3x^3n)^2+4(x^2)^2n x的^3n=2,求x^6n+x^4n*x^5n的值 已知x^n=2,求(3x^3n)^2-4(x^2)^2n x^2n=5 求(2x^3n)^2/4x^2n 已知集合P={x|x=2n,n∈N^+},集合Q={x|x=3n,n∈N*}.则P∩Q等于多少?,A,{x|x=n,n∈N*}B.{x|x=5n,n∈N*}C,{x|x=12n,n∈N*}D,{x|x=6n,n∈N*} 已知x^n=4,求x^2n,x^3n的值 若集合P={x|x=2n,n∈N},T={x|x=3n,n∈N},则P∩T=