Question

prove that 7√5 is irrational
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Answer 1

Step-by-step explanation:

Let us assume that 75 is rational number

Hence 75 can be written in the form of ba where a,b(b=0) are co-prime

⟹75=ba

⟹5=7ba

But here 5 is irrational and 7ba is rational

as Rational=Irrational

This is a contradiction 

so 75 is a irrational number

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Answer 2

Answer:

check the attachment for all steps.