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anonymous
 5 years ago
how do i prove that x^2  2 = 0 has a solution in the positive real numbers?
anonymous
 5 years ago
how do i prove that x^2  2 = 0 has a solution in the positive real numbers?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0x^2  2 = 0 add 2 to both sides x^2 = 2 square root both sides x = +sqrt(2) plus or minus sqrt(2) x = +1.4142

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do i prove that sqrt(2) is in the positive reals?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It's got a plus sign... makes it positive. It doesn't have an "i" so it is real.
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