[latex]frac{2}{2+sqrt{3}} : frac{3sqrt{3}-1}{sqrt{3}+1} + frac{2sqrt{3}+5}{13}[/latex]   prosze rozwiazcie daje duzo pkt

= 2/(2+√3) * √3+1/ (3√3 -1) +( 2√3 + 5)/13 = = 2/(2+√3) *(2-√3) * √3 + 1 /(3√3 - 1)(3√3 + 1) +( 2√3 + 5)/13 = = 2/(4-3) *(√3+1)/(9*3-1) +( 2√3 + 5)/13 = =2*(√3+1)/18+( 2√3 + 5)/13= = (√3+1)/9 +( 2√3 + 5)/13= =13(√3+1)/117 + 9(2√3+5)/117 = = [(13(√3+1) + 9(2√3+5)]/117