Prove that 3 - √5 is irrational | Real Numbers | Class 10 Maths | BOARD EXAM 2026 @MannKiGanit

Real Number All Question of Board Exam 2012-2025

00:00 Introduction of real numbers
07:00 Infromation About Natural Numbers : Even Odd Composit Prime Multiples
13:30 Fundamental Theorem of Arithmetic
17:08 Find Value of x in figures
18:08 The sum of the powers of the prime factors of 196.
20:13 Find HCF and LCM by Prime Factrorization Method 6 and 20
34:32 Imp MCQ's of Real Number Irrational Numbers
39:52 Find Higest Common Factor (HCF) of 54 and 336 and Verify.
47:33 Find Higest Common Factor (HCF) of 90 and 144.
51:21 Find Higest Common Factor (HCF) of 375 and 675.
53:50 Find the highest common factor of the numbers 36 and 64 by using prime factorisation method. Using highest common factor, find the least common multiple.
57:53 Find the HCF and LCM of 180, 72 and 252, using the prime factorisation method.
1:01:40 Find the HCF and LCM of 144 and 192, using the prime factorisation method.
1:06:07 If the product of two numbers is 525 and their H.C.F. is 5, then find their L.C.M.
1:07:48 The Highest Common Factor of two numbers is 27 and their Least Common Multiple is 162. If one number is 54, then find the other number.
1:09:38 Given that HCF (306, 66) = 6, find LCM (306, 66).
1:14:07 There is a circular path around a sports field. Sonia takes 18 minutes to drive one round
of the field, while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at the same time, and go in the same direction. After how many minutes
will they meet again at the starting point?
1:19:00 Find the highest positive integer by which dividing the numbers 396, 436 and 542 remainders are 5, 11 and 15 respectively.
1:23:34 Check whether 6^n can end with the digit 0 for any natural number n.
1:28:40 Explain why 7 × 11 × 13 + 13 is composite number.
1:33:26 Prove irrational number introduction
1:36:58 Prove that √2 is irrational and Prove that √6 is irrational.
1:44:36 Prove that √3 is irrational and Prove that √5 is irrational.
1:50:45 Prove that 3 - √5 is irrational and Prove that 3 + √2 is irrational.

Видео Prove that 3 - √5 is irrational | Real Numbers | Class 10 Maths | BOARD EXAM 2026 @MannKiGanit канала Mann Ki Ganit