Question

Given that √5 is irrational prove that 3+2√5 is irrational​

Answer 1

• 2√5-3 = p/q

• 2√5 = p/q +3

• 2√5 = (p+3q)/q

• √5 = (p+3q)/2q

We can see that LHS is an irrational number which can never be equal to RHS which is a rational number. Therefore, our assumption that 2√5-3 is a rational number is wrong. 2√5-3 is not a rational number, it is an irrational number.

Hence proved.

Done!!

Answer 2

Answer:

above one is correct...

Step-by-step explanation:

thanks