Learn to rationalize the denominator with a single radical

Learn to rationalize the denominator with a single radical

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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FREE Resource

The video tutorial explains the concept of rationalizing the denominator when dealing with irrational numbers, specifically focusing on the square root of 3. It discusses the challenges of dividing by irrational numbers and the process of removing square roots by multiplying appropriately. The tutorial also covers the importance of maintaining equivalent fractions to ensure the problem remains balanced, ultimately leading to the final solution of 5 times the square root of 3 divided by 3.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the nature of the square root of 3?

An integer

A rational number

A whole number

An irrational number

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we multiply by the square root of 3 over itself when rationalizing the denominator?

To change the value of the fraction

To keep the fraction equivalent

To make the fraction irrational

To simplify the numerator

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying the square root of 3 by itself?

0

3

9

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example given, what is the final simplified form of the expression?

5 divided by 3

5 square root of 3

5 square root of 3 divided by 3

3 square root of 5 divided by 3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be done to both the numerator and the denominator to maintain an equivalent fraction?

Multiply the numerator by 2

Add 3 to both

Multiply both by the same number

Divide the denominator by 3