N nrumble42 Member Joined Oct 3, 2016 Messages 64 Gender Female HSC 2017 Oct 20, 2017 #1 Is proof by contradiction an okay to show an inequality statement is true? Or should you try other ways first?
Is proof by contradiction an okay to show an inequality statement is true? Or should you try other ways first?
seanieg89 Well-Known Member Joined Aug 8, 2006 Messages 2,662 Gender Male HSC 2007 Oct 20, 2017 #2 Defs try other methods first. It's extremely rare that an inequality will be easier / more natural to prove by contradiction than directly.
Defs try other methods first. It's extremely rare that an inequality will be easier / more natural to prove by contradiction than directly.
pikachu975 Premium Member Joined May 31, 2015 Messages 2,739 Location NSW Gender Male HSC 2017 Oct 20, 2017 #3 Usually in HSC proof by contradiction is needed for "Prove something is irrational" other than that I've never seen it used
Usually in HSC proof by contradiction is needed for "Prove something is irrational" other than that I've never seen it used