Question:
What is 3 3 3 i i equal to?
What is 3 3 3 i i equal to?
Options:
- a) -1
- b) 0
- c) 1
- d) 3
- a) -1
- b) 0
- c) 1
- d) 3
correct answer : a)
Explanation:
3
3
3
+
–
i
i
= 3
31
2 3
+()
+
i
= 3
2
1
2
6
+
i
= coss inππ
66
6
+
i
= cos p + i sin p = -1
3
3
3
+
–
i
i
= 3
31
2 3
+()
+
i
= 3
2
1
2
6
+
i
= coss inππ
66
6
+
i
= cos p + i sin p = -1