Question

设x的3/4次幂=3的3/2次幂,则x=?

Answer 1

X^(3/4)=3^(3/2)

=> 3/4*lgX=3/2*lg3

=> X=10^(3/2*lg3*4/3)

=> X=10^(2lg3)

=> X=10^lg(3^2)

=> X=3^2

=> X=9