Question

$2- \sqrt{2} DIVIDO \sqrt{2} -1$

Answer 1

$\frac{2- \sqrt{2} }{ \sqrt{2} -1} = \frac{(2- \sqrt{2} )( \sqrt{2} +1)}{( \sqrt{2}-1)( \sqrt{2}+1) } =$

$\frac{2 \sqrt{2}+2-2- \sqrt{2} }{2 -1} = \frac{2 \sqrt{2}- \sqrt{2} }{1} =$

$\frac{2 \sqrt{2} - \sqrt{2} }{1} = \sqrt{2}$