27^((2/3)+log3^2) 求值. 在线=

问题描述:

27^((2/3)+log3^2)
求值.
在线=

27^((2/3)+log3^2)
=27^(2/3)*27^(log3^2)
=9*3^(3log3^2)
=9*2^3
=9*8
=72

27^((2/3)+log3^2)
=3^2+2log3
约等于9+2*0.477=9.954

27^((2/3)+log3^2)
=3^(3((2/3)+log3^2))
=3^(2+log3^8)
=9*3^log3^8
=9*8
=72