Question

prove that 3+2√5 is irrational​

Answer 1

❗❗solution❗❗

take 3 + 2√5 as an rational number...

so, 3 + √5 ia an irrational number and it acn be write in the form of a/b where a & b are integers and co-prime numbers...

hence,

3 + 2√5 = a/ b

2√5 = a/b -3

√5 = a-3b/2b

√5 is rational.

This contradicta the fact that √5 is irrational.

So our supposition is incorrect...

hope!!...it helps uhh...❣️