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Prove by contrapositiob, if x is irrational then square root of x is irrational
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Prove by contrapositiob, if x is irrational then square root of x is irrational

User Kindzoku
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The contrapositive is If sqrt x is rational then x is rational.
This is true as , for example if sqrt x = 3 then x = 9.

There is no way that a rational number squared would be irrrational.

User Omara
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