log小2(1/49)*log小3(1/16)*log小7(1/27)

问题描述:

log小2(1/49)*log小3(1/16)*log小7(1/27)

你的"小"的意思是底数吧?!用vb中的log函数Private Sub Command1_Click()i1 = Log(1 / 49) / Log(2)i2 = Log(1 / 16) / Log(3)i3 = Log(1 / 27) / Log(7)MsgBox i1 * i2 * i3End Sub结果:-24