Question

Calculati :
a) √2 *1-1
b)√2*2-1

Answer 1

$a) \sqrt{2}*1-1= \sqrt{2} -1=1,41-1=0,41.$
$b) \sqrt{2} *2-1= \sqrt{2} * \sqrt{4} -1= \sqrt{8} -1=2,83-1=1,83.$