Negative and Fractional Powers

Negative and Fractional Powers

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to handle negative fractional powers by finding reciprocals and applying fractional power rules. It provides examples, such as A to the power of -4/5 and 9 to the power of -3/2, demonstrating step-by-step calculations. The tutorial also covers reversing the process, converting expressions with roots and powers into negative fractional powers, and concludes with a summary of the key concepts.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in handling a negative fractional power like A to the power of -4/5?

Add the power to the base

Multiply the base by the power

Square the base

Find the reciprocal of the base

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After finding the reciprocal for a negative power, what is the next step when dealing with fractional powers?

Multiply the base by the power

Find the root indicated by the denominator

Add the power to the base

Subtract the power from the base

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of 9 to the power of -3/2, what is the result after applying the square root and cube operations?

1/9

1/27

1/3

1/81

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the expression 1 divided by the 7th root of a squared be rewritten using a single power?

A to the power of -7/2

A to the power of 7/2

A to the power of -2/7

A to the power of 2/7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the negative sign in a power indicate when converting roots to powers?

The base should be cubed

The expression is a reciprocal

The base should be multiplied by 10

The base should be squared