Algebra of real numbers | Operations on Real Numbers | Addition of a rational and an irrational

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00:02 Q1. Classify the following numbers as rational or irrational:

00:16 (i) Identify 2 - sqrt(5) is rational or irrational number

00:49 (ii) Whether 3 + sqrt(23) - sqrt(23) is rational or irrational number

01:45 (iii) Identify 2sqrt(7)/7sqrt(7) is rational or irrational number

02:22 rational number is in the form p/q, where p and q are integers.

(iv)1/sqrt(2)

(v) 2 pi

02:38 Q2. Simplify each of the following expressions using algebraicidentities.

02:48 (i) Simplify the expressions involving radicals.

04:29 (ii) Simplifying radicals

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