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Writing complex number in standard form

Writing complex number in standard form

Assessment

Interactive Video

Mathematics

11th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains how to solve a complex number problem by converting it into standard form. It begins with an introduction to the problem and the concept of standard form, which is expressed as a + BI, where A is the real part and BI is the imaginary part. The instructor identifies the real and imaginary components of the given expression and uses the definition of I, the square root of -1, to simplify the expression. Finally, the expression is rewritten in standard form, demonstrating the process of solving complex number problems.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the standard form of a complex number?

a * bi

a / bi

a - bi

a + bi

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'a' represent in the standard form of a complex number?

The imaginary part

The real part

The magnitude

The coefficient of i

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i squared?

i

-1

0

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you rewrite -4i^2 + 2 in standard form?

-4 + 2i

4 + 2i

4 - 2i

-4 - 2i

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the expression 4 + 2i, what is the imaginary part?

4

i

2

2i

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