prove that 2-5under root7 is irrational
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Answer: MARK ME AS BRAINLIEST
Step-by-step explanation:
Let, 2 - 5√7 be a rational number
∴ 2 - 5√7 =a/b
⇒ √7 = (2b - a)/ 5b
∵ LHS is Irrational but RHS is rational
Therefore, our assumption is wrong.
2 - 5√7 is a irrational number
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