Solutions - 0140-03

(a) $-1,+1,-1,+1$

(b) ${\displaystyle \frac{1}{2},\frac{1}{2},\frac{3}{4},\frac{3}{2}}$

(c) $+1,-1,+1,-1$

(d) ${\displaystyle \frac{1}{2},\frac{2}{3},\frac{3}{4},\frac{4}{5}}$

(e) ${\displaystyle 3,\frac{9}{2},\frac{9}{2},\frac{27}{8}}$

(f) $1,3,20,210$