Question

calcule
a)√19-12
b)√1,21 +√1,44 +√0,49 +√0,16 +√0,36

Answer 1

$a) \: \sqrt{19 - 12} \\ \sqrt{7} \\ \\ b) \: \sqrt{1.21} + \sqrt{1.44} + \sqrt{0.49} + \sqrt{0.16} + \sqrt{0.36} \\ \sqrt{1.21 + } \sqrt{1.44} \sqrt{ \frac{49}{100 } } + \sqrt{ \frac{4}{25} } + \sqrt{ \frac{9}{25} } \\ \sqrt{1.21 + } \sqrt{1.44 + } \sqrt{ \frac{49}{100} } + \sqrt{ \frac{4}{25} } + \frac{3}{5} \\ \sqrt{1.21} + \sqrt{1.44} + \sqrt{ \frac{49}{100} } + \sqrt{ \frac{19}{25} } \\ \sqrt{1.21} + \sqrt{1.44} + \sqrt{ \frac{49}{100} } + \sqrt{ \frac{19}{5} }$