Question

Calculati suma dintre inversul numarului 2-radical din3 si opusul numarului radical din3-1

Answer 1

 $\frac{1}{2 \sqrt{3} } +(- \sqrt{3} - \sqrt{1} )}=\frac{1}{2 \sqrt{3} }-2= \frac{1}{2 \sqrt{3} } - \frac{4 \sqrt{3} }{2 \sqrt{3} } = \frac{2 \sqrt{3}-24 }{12 } = \frac{2( \sqrt{3}-12) }{12 }= \frac{ \sqrt{3}-12}{6} $