Răspuns :
rad1,96=1,4=14/10=7/5
rad9/4=3/2
7/5 - 3/2 =
(14-15)/10 =
-1/10
rad9/4=3/2
7/5 - 3/2 =
(14-15)/10 =
-1/10
√1.96 - [tex]\sqrt{2 }\frac{1}{4}[/tex]= [tex]\sqrt{196/100} - \sqrt{9/4} = \sqrt{49/25}- \sqrt{9/4}= \frac{\sqrt{49}}\sqrt{25}} - \frac{\sqrt{9}}\sqrt{4} } = \frac{7}{5} - \frac{3}{2}[/tex]
Pentru a face aceasta scadere trebuie sa aducem la acelasi numitor , adica 10:
[tex]\frac{14}{10}- \frac{15}{10} = \frac{-1}{10} = -0.1[/tex]
Sper ca te-am ajutat!
Spor!