[tex]Calculati: \frac{1- \sqrt{2} }{ \sqrt{2} } + \frac{ \sqrt{2} - \sqrt{3} }{ \sqrt{6} } + \frac{ \sqrt{3}- \sqrt{4} }{ \sqrt{12} } +..... \frac{ \sqrt{99}- \sqrt{100} }{ \sqrt{9900} } [/tex]