Practice Revisiting Irrational Numbers - 1.3 | 1. REAL NUMBERS | CBSE 10 Mathematics
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

1.3 - Revisiting Irrational Numbers

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is an irrational number? Give an example.

πŸ’‘ Hint: Think about numbers that go on forever without repeating.

Question 2

Easy

State the Fundamental Theorem of Arithmetic.

πŸ’‘ Hint: It relates to prime factorization.

Practice 3 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

Which of the following is an irrational number?

  • 3
  • 2.5
  • \\( \\sqrt{2} \\)

πŸ’‘ Hint: Remember the definition of irrational.

Question 2

True or False: The square of an irrational number is always rational.

  • True
  • False

πŸ’‘ Hint: Consider examples like \\( \\sqrt{2} \\).

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Prove that the sum of two irrational numbers can be rational.

πŸ’‘ Hint: Think about how some irrational numbers can cancel out.

Question 2

Demonstrate using proof by contradiction that \( 7 + \sqrt{3} \) is irrational.

πŸ’‘ Hint: Follow the previous proof structure for guidance.

Challenge and get performance evaluation