Question

2. Prove that 3 + 2V5 is irrational.​

Answer 1

Step-by-step explanation:

let you assum that 3+2√3 is a rational number

which is equal to r.

Then, 3+2√3=r

2√3=r-3

√3= r-3/2

we know that √3 is an irrational number

therefore our contradiction is wrong that 3+2√3 is a rational number.

So, It is proved that 3+2√3 is an irrational number