Question

Prove that 5 −2√3/7
is an irrational number.

Answer 1

HeRe Is Your Ans ⤵

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Let 5 - 2√3 / 7 is an rational number

➡5 - 2√3 / 7 = A / B

➡- 2√3 / 7 = (A)/ B - 5

➡- 2√3 = 7A / B - 5

➡ √3 = 7A / 2B - 5

Integer = Fraction

So , our assumptions is wrong 5 - 2√3 / 7 is an irrational number

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