Pure Year 2 Unit 1 Flashcards
1
Q
How to prove by contradiction?
A
.Start by assuming its not true
.Use steps to lead to something impossible, a contradiction
.Conclude the assumption its not true is incorrect
2
Q
In proofs, how can rational and irrational numbers be diffrentiated?
A
Rational numbers can be expressed like a/b where a and b are integers, irrational numbers can not
3
Q
What is Q?
A
The set of all rational numbers
