Numbers

Question 1

Natural numbers

Answer 1

N whole postive numbers

Question 2

rational numbers

Answer 2

Q numbers which can be written as a fraction of intergers

Question 3

Intergers

Answer 3

Z whole postive and negative numbers

Question 4

Irrational numbers

Answer 4

R/Q numbers which cannot be written as a fraction of an interger ( surds are irrational)

Question 5

composite numbers

Answer 5

any number that isnt prime

Question 6

What is proof by contradiction

Answer 6

to prove by contradiction that A is true first assume that not ‘A’ is true.Then follow not ‘A’ to an impossibility.If not A is impossible then A must be true