2 j
− 3 j
1 −j
(^0) x
y
√ 3
2
1
- 2 j
1
2
+j
√
3
2
19.(i) 2^7 (ii) − 215 j
cos( 38 θ)−jsin( 38 θ)
(i) ± 1
(ii) ±j
(iii) ±
(
1
√
2
+
1
√
2
j
)
(iv)
√
3
2
−
1
2
j,j,−
√
3
2
−
1
2
j
(v) 2^1 /^4
(
cos
π
8
+jsin
π
8
)
,2^1 /^4
(
cos
(
−
7 π
8
)
+jsin
(
−
7 π
8
))
(vi) ±
√
2
(√
3
2
+
1
2
j
)
(vii) 2^1 /^8
(
−
π
16
)
,2^1 /^8
(
7 π
16
)
,2^1 /^8
(
15 π
16
)
,2^1 /^8
(
−
9 π
16
)
(viii) 2^1 /^4
(π
24
)
,2^1 /^4
(
13 π
24
)
,2^1 /^4
(
−
23 π
24
)
,2^1 /^4
(
−
11 π
24
)
1 +j
√
2
1 −j
√
2
− 1 +j
√
2
− 1 −j
√
2