So I am trying to solve a simple rational inequality: ##\sqrt{x} < 2x##. Now, why can't I just square the inequality and go on my way solving what results? What precisely is the reason that I need to be careful when squaring the square root?(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# B Irrational inequality

Have something to add?

Draft saved
Draft deleted

Loading...

Similar Threads - Irrational inequality | Date |
---|---|

I Rational powers of irrational numbers | Mar 9, 2018 |

B Irrational inequalities √f(x)>g(x) and √f(x)>g(x) | Jan 18, 2018 |

I Rational sequence converging to irrational | Dec 10, 2017 |

I Use of irrational numbers for coordinate system | Sep 12, 2017 |

I Reason for the irrationality of (most) square roots? | Sep 9, 2017 |

**Physics Forums - The Fusion of Science and Community**