Ответ:
а) \(\sqrt{a-b}=\sqrt{0.93-0.57}=\sqrt{0.36}=0.6\).
б) \(\sqrt{a-b}=\sqrt{\frac{3}{4}-(-\frac{1}{18})}=\sqrt{\frac{3}{4}+\frac{1}{18}}=\sqrt{\frac{27}{36}+\frac{2}{36}}=\sqrt{\frac{29}{36}}=\frac{\sqrt{29}}{6}\).
Ответ: а) 0,6; б) \(\frac{\sqrt{29}}{6}\).
