根号下3倍根号3倍根号2
√(3√(3√2))
=(3√(3√2))^(1/2)
=3^(1/2)*(√(3√2))^(1/2)
=3^(1/2)*(3√2)^(1/4)
=3^(1/2)*3^(1/4)(√2)^(1/4)
=3^(3/4)2^(1/8)