Question

Revson-1
Show that 2+2 is an irrnational numb​

Answer 1

Answer:

I think that you want to say that prove that 2√2 is a irrational no. so considering that we have to prove 2√2 is irrational ... i am doing the solution

Step-by-step explanation:

Let 2√2 is a rational no.

so, 2√2=a/b ( where a and b are real and co prime no.s)

squaring both sides

4×2 = a^2 / b^2

so 2 is a factor of a

as well as b

but in our assumption a and b are co prime no.s which mean that they don't have any common factors

so our assumption is wrong.

hence 2√2 id not rational and hence irrational