Marcelaramirez1516 Marcelaramirez1516
  • 10-09-2017
  • Mathematics
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Prove by contrapositiob, if x is irrational then square root of x is irrational

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Аноним Аноним
  • 10-09-2017
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.

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