Last updated at Aug. 27, 2021 by Teachoo

Transcript

Ex 1.2, 5 Are the following pair of sets equal? Give reasons. (i) A = {2, 3}; B = {x: x is solution of x2 + 5x+ 6 = 0} A = {2, 3} B = {x: x is a solution of x2 + 5x + 6 = 0} Solving x2 + 5x + 6 = 0, x2 + 2x + 3x + 6 = 0 x(x + 2) + 3(x + 2) = 0 (x + 2)(x + 3) = 0 x = –2 or x = –3 ∴ B = {–2, –3} −2 is in set B, but not in set A As every element of A is NOT same as every element of B ∴ A ≠ B

Ex 1.2

Ex 1.2, 1 (i)
Important

Ex 1.2, 1 (ii)

Ex 1.2, 1 (iii)

Ex 1.2, 1 (iv)

Ex 1.2, 2 (i)

Ex 1.2, 2 (ii)

Ex 1.2, 2 (iii) Important

Ex 1.2, 2 (iv) Important

Ex 1.2, 2 (v)

Ex 1.2, 3 (i)

Ex 1.2, 3 (ii)

Ex 1.2, 3 (iii)

Ex 1.2, 3 (iv) Important

Ex 1.2, 3 (v) Important

Ex 1.2, 4 (i)

Ex 1.2, 4 (ii)

Ex 1.2, 4 (iii) Important

Ex 1.2, 4 (iv) Important

Ex 1.2, 5 (i) You are here

Ex 1.2, 5 (ii)

Ex 1.2, 6 Important

Chapter 1 Class 11 Sets (Term 1)

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.