Question

Calculati suma dintre inversul nr 2-√3 si opusul √3-1

Answer 1

Prima fractie o amplifici cu 2+√3
$\frac{1}{2- \sqrt{3} } + 1 - \sqrt{3} = \frac{2+ \sqrt{3} }{ 2^{2}- \sqrt{3} ^2 } + 1 - \sqrt{3} = 2+ \sqrt{3} + 1- \sqrt{3} = 3$