Question

Calculati: (punctele b,c si d) ​

Answer 1

Răspuns:

b=10 c=20,86 d=0

Explicație pas cu pas:

b. $\sqrt{10} -3+4-\sqrt{10}+9=\\-3+4+9= 10$

c. $/5-2\sqrt{6}/+25-2\sqrt{6}+\frac{2}{3} =\\5-2\sqrt{6}+25-2\sqrt{6}+\frac{2}{3} =\\30-4\sqrt{6}+\frac{2}{3} =\\\frac{92}{3}-4\sqrt{6}= 20,86$

d.$3-\sqrt{3}+\sqrt{3} +1-4=\\3+1-4=0$