Pre-Calculus - Adding two complex numbers - Online Tutor (8+ root(-18)) + (5- root(-50))

Pre-Calculus - Adding two complex numbers - Online Tutor (8+ root(-18)) + (5- root(-50))

Assessment

Interactive Video

Mathematics

11th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct way to add the real parts of two complex numbers in the form a + bi and c + di?

b + d

a + c

a + b

c + d

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When simplifying a negative number under a square root, what is the first step?

Add 1 to the number

Divide by 2

Multiply by 2

Factor out the negative to introduce 'i'

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you express sqrt(-18) in terms of imaginary numbers?

3i * sqrt(2)

i * sqrt(18)

i * sqrt(9)

3 * sqrt(2)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of adding the imaginary parts 3i * sqrt(2) and 5i * sqrt(2)?

15i * sqrt(2)

8i * sqrt(2)

13i * sqrt(2)

2i * sqrt(2)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example given, what is the final result of adding the complex numbers 8 + 3i * sqrt(2) and 5 + 5i * sqrt(2)?

3 + 5i * sqrt(2)

13 - 2i * sqrt(2)

8 + 5i * sqrt(2)

13 + 8i * sqrt(2)

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