Question

show that root 5 - root 2 is an irrational number​

Answer 1

Step-by-step explanation:

5-root 2

=5-2^1/2 (acc to the formulae)

the exponent is not a whole number it is an fraction so therefore 5-root 2 is an irrational number

Answer 2

Here's two attachment file of answers..

(This is for +)

Then √10 is also a rational number. But this contradicts the fact that √10 is an irrational number. √2+√5 is an irrational number. Hence proved.