Prove that 5-2√5 is irrational
Answers
Answered by
3
√5 = 2.23606
∴5-2√5 = 5-2*2.23606
=5-4.47212
=0.52788....
since 0.52788 is a non terminating non recurring decimal it is an irrational no.
∴5-2√5 = 5-2*2.23606
=5-4.47212
=0.52788....
since 0.52788 is a non terminating non recurring decimal it is an irrational no.
Similar questions