a) [tex] \frac{1}{2}* ( \frac{1}{3}+ \frac{1}{6})= \frac{1}{2}*( \frac{2}{6}+ \frac{1}{6})= \frac{1}{2}* \frac{3}{6} = \frac{1}{6} [/tex]
c) [tex]= \frac{1}{6} + \frac{3}{2}*( \frac{3}{4}- \frac{2}{4})= \frac{1}{6}+ \frac{3}{2}* \frac{1}{4} = \frac{1}{6}+ \frac{3}{6}= \frac{4}{6}
[/tex]
e)raspunsul e 37
b)raspunsul e [tex] \frac{7}{2} [/tex]
