Simplifying an imaginary number to a higher power

Simplifying an imaginary number to a higher power

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial covers the concept of imaginary numbers, focusing on the powers of i. It explains the repeating pattern of i's powers and demonstrates how to calculate higher powers using this pattern. An example of calculating i to the 54th power is provided, illustrating the method of dividing the exponent by 4 and using the remainder to find the equivalent power of i. The tutorial emphasizes understanding the first four powers of i and applying the repetition concept for simplification.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i^2?

i

1

-1

-i

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How often does the pattern of powers of 'i' repeat?

Every 4 terms

Every 3 terms

Every 2 terms

Every 5 terms

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i^5?

1

-1

i

-i

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When calculating i^54, what is the remainder when 54 is divided by 4?

1

0

2

3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equivalent value of i^54?

-1

1

i

-i