.
1. , [0,2], , .
.13
.
: = 1 = 2; (0,1) (1,2) , (-¥,0), (2,+¥) . , R f(x) , .
f(x):
.
.
:
= 0: ½[f(+0)+f(-0)] = ½(0 + 0) = 0
= 1: ½[f(1+0)+f(1-0)] = ½(1 - 1) = 0
= 2: ½[f(2+0)+f(2-0)] = ½(0 2) = -1
.
. 14
2. [-2,0] , [0,2]. , [-2,2], , [-2,2].
. 15
.
: = -2, = -1, = 1 = 2; (-1,0), (1,2) , (-2,-1), (0,1) , (-¥,-2), (2,+¥) . , R f(x) , .
f(x):
.
.
:
= -2: ½[f(-2+0)+f(-2-0)] = ½(-2 + 0) = -1
= -1: ½[f(-1+0)+f(-1-0)] = ½(-1 + 1) = 0
= 1: ½[f(1+0)+f(1-0)] = ½(1 - 1) = 0
= 2: ½[f(2+0)+f(2-0)] = ½(0 2) = -1
.
. 16
3. [-2,0] , [0,2]. , [-2,2], , [-2,2].
. 17
.
: = -2, = -1, = 1 = 2; (-2,-1), (-1,1), (1,2) , (-¥,-2), (2,+¥) . , R f(x) , .
f(x):
.
.
|
|
:
= -2: ½[f(-2+0)+f(-2-0)] = ½(2 + 0) = 1
= -1: ½[f(-1+0)+f(-1-0)] = ½(1 - 1) = 0
= 1: ½[f(1+0)+f(1-0)] = ½(1 - 1) = 0
= 2: ½[f(2+0)+f(2-0)] = ½(0 2) = -1
.
. 18