Understanding Irrational Numbers

The video tutorial explains the difference between rational and irrational numbers. Rational numbers can be expressed as fractions with integers, while irrational numbers cannot. Irrational numbers are represented by symbols like the dot dot dot, square roots of non-perfect squares, and pi. The video provides examples and practice exercises to help identify irrational numbers.

What is the definition of an irrational number?

How can you identify an irrational number based on its decimal representation?

What symbols are used to represent irrational numbers?

Explain why the square root of a non-perfect square is considered irrational.

Why is pi considered an irrational number?