Is Dividing an Irrational Number by a Rational Number Always …
Oct 13, 2025 · Dividing an irrational number by a nonzero rational number results in an irrational number. The proof by contradiction assumes that the result is rational, leading to the …
What is the Sum of Two Irrational Numbers? - Physics Forums
Feb 14, 2005 · I have a question. I realize that two rational numbers added together equal a rational number and that a rational added to a irrational equal a irrational number; but how do I …
How Do We Know If Irrational or Transcendental Numbers Repeat?
Mar 25, 2014 · The discussion centers on the nature of irrational and transcendental numbers, specifically whether they can have repeating decimal expansions. It is established that …
irrational = rational - Physics Forums
Mar 13, 2005 · Can someone prove that there exists x and y which are elements of the reals such that x and y are irrational but x+y is rational? Certainly, there are an infinite number of …
Constructing Lengths with Irrational Numbers - Physics Forums
Dec 6, 2004 · The discussion centers on the nature of irrational numbers and their existence in the physical world, questioning how lengths like the hypotenuse of a right triangle can be …
Prove or disprove that there is a rational number x and an i
Jan 25, 2019 · The discussion centers on proving or disproving the existence of a rational number x and an irrational number y such that x^y is irrational. Participants suggest that proof by …
Is sqrt(5) Rational? Understanding the Proof by Contradiction
Nov 23, 2003 · Alright, heading says it all. This is a nice problem heh.. I can see how to prove sqrt(5) is irrational. I think this method works up to the points where the fact 5 is a prime is …
Showing that tan(1) is irrational - Physics Forums
Feb 11, 2019 · Homework Statement Prove that ##\tan (1^\circ)## is irrational. Homework EquationsThe Attempt at a Solution Suppose for contradiction that ##\tan...
How did the Greeks deal with sqrt(2)? • Physics Forums
Dec 21, 2018 · The Greeks recognized the existence of irrational numbers, such as √2, but struggled with their implications due to their philosophical beliefs that all numbers should be …
Prove square root of 3 is irrational - Physics Forums
Mar 23, 2010 · What if I say, prove that square root of 4 is an irrational number. If my answer comes out as true, it is a rational number (contradiction assumption) then it is not an irrational. …