Question

please do fast it's urgent please it's my holidays homework ​

Answer 1

Answer:

Here's your answer mate ✌️

(Sorry for the first one)

Step-by-step explanation:

(ii) First, let us assume that 7√5 is a rational number

Therefore, 7√5 can be written in p/q form.

Therefore, 7√5 = p/q

Therefore, √5 = p/q - 7............ ( Subtracting Seven by both sides)

This is contradictory because one side is irrational and one side is rational

Therefore, 7√5 is irrational.

Hence, proved.

(iii) First let us assume that 6+√2 is rational number

Therefore, 6+√2 can be written in p/q form.

Therefore, 6+√2 = p/q

Therefore, √2 = p/q - 6 ............. ( Subtracting six by both sides)

This is contradictory because one side is irrational and one side is rational

Therefore 6+√2 is irrational.

Hence, proved.

I don't know the first one so sorry mate.

Hope this helps,

Please mark my answer as brainlist dear.