Ask your own question, for FREE!
Mathematics 21 Online
mathslover (mathslover):

prove that root 2 power root 2 is irrational .

OpenStudy (anonymous):

|dw:1358647793062:dw|

mathslover (mathslover):

yep

OpenStudy (anonymous):

Well since root 2 is irrational, an irrational number raised to an irrational number should still be irrational.

OpenStudy (anonymous):

But that's not always true. Hmm... Intresting. One moment.

OpenStudy (anonymous):

Thing is, this is NOT an irrational number. It's rational.

OpenStudy (anonymous):

Use proof by contradiction.

OpenStudy (anonymous):

Assume is IS rational.

mathslover (mathslover):

ok go on

OpenStudy (ghazi):

i dont have a very nice method but i guess this will help you let's say \[x= 2 ^{\sqrt2}\] take log on both the sides \[\log x = \sqrt {2}\log2\] find the value of right side and finally \[X= e ^{\sqrt2 \log 2}\] and i am sure that would be irrational

OpenStudy (anonymous):

|dw:1358648074024:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!