Quiz about Extra Practice for Complex Numbers Test

Question 1

Simplify: (-7 + 5i) + (3 - 2i)

Accepted Answer

-4 + 3i

Answer

10 + 3i

Answer

-10 + 3i

Answer

-4 - 7i

Question 2

Simplify: -8 + 8 - (-3 - 5i)

Accepted Answer

3 + 5i

Answer

1 + 5i

Answer

-3 + 5i

Answer

3 - 5i

Question 3

Simplify: (5 + 2i) - (7 - 8i)

Accepted Answer

-2 + 10i

Answer

-16 + 26i

Answer

-12 + 10i

Answer

-12 + 6i

Question 4

Simplify: (-8 + 8i) + (1 - 7i)

Accepted Answer

-1 - 7i

Answer

-8 + i

Answer

-9 + 15i

Answer

-7 + i

Question 5

Simplify: (3 - 4i) + (-5 + 8i)

Accepted Answer

-2 + 4i

Answer

4i

Answer

-5 + 8i

Answer

8 - 12i

Question 6

Simplify: (-6 + 7i) - (7 - 4i)

Accepted Answer

-13 + 11i

Answer

-13 + 3i

Answer

-7 + 4i

Answer

-5 + 4i

Question 7

Simplify: (-5i)(-6 - 4i)

Accepted Answer

42 + 28i

Answer

18 + 12i

Answer

-20 + 30i

Answer

20 - 30i

Question 8

Simplify: (-8i)(7 - 6i)

Accepted Answer

-48 - 56i

Accepted Answer

48 + 56i

Answer

-24

Answer

-54 + 54i

Question 9

Simplify: (-6i)(4i)(-i)

Accepted Answer

-24i

Accepted Answer

24i

Answer

-48

Answer

-18

Question 10

Simplify: (6 + i)(-4 + 7i)

Accepted Answer

-31 - 38i

Answer

-31 + 38i

Answer

31 + 38i

Answer

-17 - 46i

Question 11

(-8 - 6i)(-1 + 7i)

Accepted Answer

34 + 62i

Accepted Answer

34 - 62i

Answer

-50 - 50i

Answer

50 - 50i

Question 12

-rac{2}{-2i}

Accepted Answer

-rac{5i}{2}

Answer

-2i

Answer

-rac{3i}{2}

Answer

-i

Question 13

-rac{3 - 2i}{-5i}

Accepted Answer

-rac{6i + 2}{5}

Accepted Answer

-rac{8i}{5}

Accepted Answer

-rac{3i + 2}{5}

Answer

\frac{2 + 2i}{3}

Question 14

19) $$\frac{7}{-9 + 8i}$$

Accepted Answer

-\frac{63 - 56i}{139}

Accepted Answer

-\frac{63 - 56i}{145}

Answer

-\frac{54 - 48i}{145}

Answer

-\frac{56 - 64i}{113}

Question 15

20) $$\frac{-10 - 2i}{4 + 10i}$$

Accepted Answer

$$-\frac{10 + 11i}{17}$$

Answer

$$-\frac{10 + 25i}{29}$$

Answer

$$-\frac{15 + 23i}{29}$$

Answer

$$-\frac{50 + 94i}{109}$$

Question 16

21) $$\frac{1 - i}{-7 + i}$$

Accepted Answer

-\frac{5 + 3i}{17}

Answer

-\frac{4 + 3i}{25}

Answer

-\frac{3 + 2i}{13}

Answer

-\frac{3 + i}{10}

Question 17

22) $$\frac{-10 - 3i}{8 - 6i}$$

Accepted Answer

$$-\frac{16 - 21i}{25}$$

Accepted Answer

-1 - i

Accepted Answer

$$-\frac{19 - 21i}{25}$$

Accepted Answer

$$-\frac{31 - 42i}{50}$$

Question 18

Simplify the powers of i. 23) (6i) + (2i)

Accepted Answer

8i

Accepted Answer

7 + 2i

Answer

-4i

Answer

2 + 6i

Question 19

Simplify the powers of i. 24) (2i) - (2i)

Accepted Answer

0

Answer

-2 + 2i

Answer

4i

Answer

2

Question 20

Simplify the powers of i. 25) (6 - i) - (5i)

Accepted Answer

6 - 6i

Accepted Answer

-6 - 4i

Accepted Answer

-6 - 6i

Accepted Answer

6 + 4i

Question 21

Simplify the powers of i. 26) (i) + (-6 - i)

Accepted Answer

-6

Answer

6 + 2i

Answer

6 - 2i

Answer

-6 + 2i

Question 22

What complex number is represented by the graph?

Accepted Answer

-3+i

Answer

-3-i

Answer

1+3i

Answer

1-3i

Question 23

What complex number is shown on the graph?

Accepted Answer

-2-3i

Answer

(-2,-3)

Answer

2-3i

Answer

3i-2

Question 24

Where is point D located?

Accepted Answer

-1 - i

Answer

2 + i

Answer

-3

Answer

2i

Question 25

Refer to the above image, what is the conjugate of the denominator?

Accepted Answer

-6 +8i

Answer

8 + 6i

Answer

6 + 8i

Answer

6 - 8i

Question 26

What is the conjugate of -2+5i?

Accepted Answer

-2-5i

Answer

-5+2i

Answer

2+5i

Answer

5-2i

Question 27

What is the complex conjugate of $$3-2i$$ ?

Accepted Answer

$$3+2i$$

Answer

$$i$$

Answer

$$-i$$

Answer

$$3-2i$$

Question 28

Question 28.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 29

Question 29.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 30

Question 30.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 31

Simplify

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 32

Question 32.

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 33

Question 33.

Accepted Answer

A.

Answer

B.

Answer

C.

Answer

D.

Question 34

Question 34.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 35

Simplify: (4 + 3i) - (2 - 5i)

Accepted Answer

2 + 8i

Answer

6 + 8i

Answer

6 - 2i

Answer

2 - 8i

Question 36

What is the result of multiplying (3 + 2i) by its conjugate?

Accepted Answer

13

Answer

13 + 6i

Answer

5

Answer

9 + 4i

Question 37

Simplify: (2 - 3i)(1 + 4i)

Accepted Answer

-10 + 11i

Answer

14 + 5i

Answer

14 - 5i

Answer

-10 - 11i

Extra Practice for Complex Numbers Test

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