Understanding Sums and Products of Irrational Numbers

Understanding Sums and Products of Irrational Numbers

Assessment

Interactive Video

Created by

Mia Campbell

Mathematics

9th - 12th Grade

Hard

The video tutorial explores the outcomes of adding and multiplying irrational numbers. It demonstrates that the sum or product of two irrational numbers can be either rational or irrational, depending on the specific numbers involved. Examples are provided to illustrate scenarios where irrational numbers result in rational sums or products, such as adding pi and 1 minus pi, or multiplying 1 over pi and pi. The key takeaway is that without knowing the specific irrational numbers, one cannot determine if the result will be rational or irrational.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main question posed when adding two irrational numbers?

Whether their sum is rational or irrational

Whether their sum is always zero

Whether their sum is always negative

Whether their sum is always positive

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following pairs of numbers can result in a rational sum?

Square root of 2 and Pi

Square root of 2 and 3

Pi and 1 minus Pi

Pi and Pi

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you add Pi and Pi, what type of number is the result?

Rational

Complex

Irrational

Integer

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main question posed when multiplying two irrational numbers?

Whether their product is always positive

Whether their product is always negative

Whether their product is always zero

Whether their product is rational or irrational

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following pairs of numbers can result in a rational product?

Square root of 2 and 3

Square root of 2 and Pi

1 over Pi and Pi

Pi and Pi

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the product of Pi and Pi?

Complex

Integer

Irrational

Rational

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you multiply the square root of 2 by itself, what is the result?

2

Square root of 2

4

1

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is true about the sum of two irrational numbers?

It is always an integer

It can be either rational or irrational

It is always irrational

It is always rational

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is true about the product of two irrational numbers?

It is always rational

It is always irrational

It can be either rational or irrational

It is always an integer

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do you need to know to determine if the sum or product of two irrational numbers is rational or irrational?

The number of digits in the numbers

The type of operation performed

The order of operations

The specific irrational numbers involved

Explore all questions with a free account

or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?