Question

prove that 7 root 2 by 5 is irrational number​

Answer 1

Answer:

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Step-by-step explanation:

let 7√2/5 =a/b (a, b are integers b not equal to zero)

then 7√2=5a/b

so √2=5a/7b

but 5,7,a,b are integers

so √2 is an integer

this is a contradiction

as √2 is irrational

therefore 7√2/5 is irrational

Answer 2

Step-by-step explanation:

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love leo messi