Question

prove that the following are irrational
1/√2​

Answer 1

Step-by-step explanation:

try to rationalise 1/√2 by multiplying the numerator and denominator with √2

you will get √2/2

as we know rhat√2*√2=2

We have to write the denominator 2 as √2*√2

√2 and √2 get cancelled and the answer remains the same

hence proved 1/√2 is irrational

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Answer 2

Answer:

1/√2= 0.7071...

So, we can't express it in fraction p/q where p & q are co-primes and q > 1