Recent content by CPatCU

Sorry, the problem is prove that log(4)18 is irrational. I also realize that this should be done as a contradiction, I am just not sure how to do it.

Homework Statement log418 rational numbers are in form x/y Homework Equations logab = logcb / logca The Attempt at a Solution log218 / log218 = x/y (b) log218 = (a) log218 log218b = log218a Then I am stuck.