題組內容
3. According to the values of <strong>a</strong> and <strong>b</strong> given in the following, find by the division algorithm, the values of <strong>q</strong> and <strong>r</strong> such that,
\[ a = qb + r, \text{where } 0 \le r < |b| \]
(b)a = -78; b = 15; (5%)