Given that sqrt(15) is an irrational number, prove that sqrt(3) + sqrt (5) is an irrational number.

Please teach me how to solve this question. Thank you very much.

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- Oct 5th 2006, 09:38 PMbeta12prove sqrt(3) + sqrt (5) is an irrational number
Given that sqrt(15) is an irrational number, prove that sqrt(3) + sqrt (5) is an irrational number.

Please teach me how to solve this question. Thank you very much. - Oct 5th 2006, 10:06 PMCaptainBlack
- Oct 6th 2006, 06:48 PMbeta12
Hi Captainblack,

Thank you very much.