Question

(iv)prove that this is a irrational number 5√2​

Answer 1

Answer:

Hint :-

Here we will first take an assumption that 5+√2 is an rational number and then write it in the form of ab and then solve both the sides to get the desired answer.

Therefore the quantity a−5bb is rational. ...

Therefore, 5+√2 is an irrational number. Hence proved.

Step-by-step explanation:

Hope it helps! ❤

Answer 2

First assume that the number is rational and express it in the form of a/b and then prove that a bad b are co prime
Here is an example