Assertion (A): The perimeter of △ABC is a rational number. Reason (R): The sum of the squares of two rational numbers is always rational.

Question

Assertion-ReasonDefinition of Irrational NumbersCBSE PYQ

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Which of the following is an irrational number ?

Prove that 3 – 2√5 is an irrational number, given that √5 is an irrational number.

Proof by Contradiction Method

Definition of Irrational Numbers

Prove that 3 + 7√2 is an irrational number, given that √2 is an irrational number.

If p² = 32/50, then p is a/an

√2(√2 – 1) is

A rational number between √2 and √3 is