Complex Numbers

Front

Which of the following is a correct representation of a Complex Number? Options: a + bi, ab, a - b, a x b

Back

a + bi

Front

Back

6 + 8i

Front

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

Back

11 - 2i

Front

Back

- 1

Front

Subtract 3 + 4i from 7 + 2i.

Back

4 - 2i

Front

6 + 2i divided by 3 + i

Back

2 + i

Front

Expression representing the conjugate of 5 + 6i?

Back

5 - 6i

Front

Back

25

Front

If you add two complex numbers and their sum is purely real, what can you conclude about their imaginary parts?

Back

They are equal and opposite.

Front

Create two complex numbers such that their product is a purely real number. Options: 2 + i and -2 + i, 3 + 4i and -3 + 4i, 2 + 3i and 2 - 3i, 1 + 2i and 1 + 2i.

Back

2 + 3i and 2 - 3i