Răspuns :
Răspuns:
Explicație pas cu pas:
a = -5/12 + 1/6 · 3 1/2
a = -5/12 + 1/6 · 7/2 = -5/12 + 7/12 =>
a = (-5+7)/12 = 2/12 = > a = 1/6
b = (²⁾-1/18 +³⁾1/12)·(-5/6)
b = [(-2+3)/36]·(-5/6) = 1/36 ·(-5/6) =>
b = -5/216
#copaceibrainly
a)
[tex]\it -\dfrac{5}{12}+\dfrac{1}{6}\cdot(3\dfrac{1}{2})=-\dfrac{5}{12}+\dfrac{1}{6}\cdot\dfrac{7}{2}=-\dfrac{5}{12}+\dfrac{7}{12}=\dfrac{-5+7}{12}=\dfrac{\ 2^{(2}}{12}=\dfrac{1}{6}[/tex]