Question

prove that 5-√2 is irrational​

Answer 1

To be contrary 5-√2 is rational number such that a & b are co prime

5-√2= a/b

√2=a/b-5

√2 = a-5b/b

since a-5b/b is a rational number. so √2 must be a rational number but √2 is a irrational number.

hence our assumption is wrong.So 5-√2is a irrational number

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Answer 2

Step-by-step explanation:

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