Worksheetsจำนวนเชิงซ้อน
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is (3 + 4i) + (1 + 2i)?
a)
5 + 5i
b)
2 + 3i
c)
4 + 6i
d)
3 + 4i
2.
Calculate (5 + 6i) - (2 + 3i).
a)
3 + 3i
b)
2 + 3i
c)
1 + 2i
d)
7 + 9i
3.
What is (2 + 3i) * (4 + 5i)?
a)
8 + 7i
b)
-1 + 10i
c)
-7 + 22i
d)
6 + 15i
4.
Find the result of (6 + 2i) / (3 + 1i).
a)
2.5
b)
4.0
c)
8.0
d)
1.6
5.
Express the complex number 3 + 4i in polar form.
a)
5(cos(4/3) + i sin(4/3))
b)
5(cos(arctan(4/3)) + i sin(arctan(4/3)))
c)
7(cos(arctan(3/4)) + i sin(arctan(3/4)))
d)
4(cos(3/4) + i sin(3/4))
6.
What is the sum of (1 + 2i) and (3 + 4i)?
a)
5 + 4i
b)
1 + 2i
c)
2 + 3i
d)
4 + 6i
7.
Calculate the difference (7 + 8i) - (5 + 6i).
a)
1 + 2i
b)
2 + 2i
c)
0 + 1i
d)
3 + 4i
8.
What is the product of (1 - i) and (2 + 3i)?
a)
5 + i
b)
6 - i
c)
-1 + 4i
d)
3 + 2i
9.
Find the quotient of (4 + 2i) / (2 - i).
a)
1 + 2i
b)
1.2 + 1.6i
c)
3 - i
d)
2 + 3i
10.
Express the complex number 5 - 3i in rectangular form.
a)
-5 + 3i
b)
5 + 3i
c)
3 + 5i
d)
5 - 3i
100 %
