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More strongly, at least one of e+π,eπ is transcendental. Proof here: x2−(e+π)x+eπ has roots e,π. Assume for contradiction both e+π,eπ are algebraic. Then e,π are algebraic (since they're roots of a polynomial with algebraic coefficients), contradiction, since e,π are transcendental.
Proving that a number is an irrational is extremely difficult. As Shivang Jindal has mentioned, there a lot of "at least one of them is irrational" cases, but to prove which one is in the stars with respect to difficulty. Even the irrationality of π is very difficult to prove.
Easy Math Editor
This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.
When posting on Brilliant:
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Even proving e+π,eπ is irrational/rational is unsolved,despite the fact that, at-least one of them has to be irrational![You can show this easily] .
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More strongly, at least one of e+π,eπ is transcendental. Proof here: x2−(e+π)x+eπ has roots e,π. Assume for contradiction both e+π,eπ are algebraic. Then e,π are algebraic (since they're roots of a polynomial with algebraic coefficients), contradiction, since e,π are transcendental.
Proving that a number is an irrational is extremely difficult. As Shivang Jindal has mentioned, there a lot of "at least one of them is irrational" cases, but to prove which one is in the stars with respect to difficulty. Even the irrationality of π is very difficult to prove.
It's transcendal number.