392 Answers to Exercises and Solutions to Problems
(i) -+<k<-i
t
y
(k) +k<(-2+&)/6
yt
(ml
I
-2+@ J,
- 6 <k<Q
L X
-2+43 y
(1) k = 6
t
X
(n) k=O ,
392 Answers to Exercises and Solutions to Problems
(i) -+<k<-i
t
y
(k) +k<(-2+&)/6
yt
(ml
I
-2+@ J,
-2+43 y
(1) k = 6
t
X
(n) k=O ,