irrational to an irrational power can be rational
Let .If is a rational number, then it has the required property.If is an irrational number, let ,then is a rational.Hence an irrational number to an irrational power can be a rational number.(In fact, it follows from the http://planetmath.org/node/3952Gelfond-Schneider Theorem
that is transcendental, and therefore irrational.)