Question

若n为正整数 且x的2n次方=3,则2x的3n次幂/4x的4n次幂

Answer 1

x^2n=3

所以：x^n=√3.

(2x)^3n/(4x)^4n

=(2^3n*x^3n)/(4^4n*x^4n)

=[(2^3n)/(2^8n)]*[x^3n/x^4n)

=(1/2^5n)*(1/x^n)

=1/(√3*2^5n).