Ex 1.2, 5 (i) - Chapter 1 Class 11 Sets
Last updated at Dec. 13, 2024 by Teachoo
Last updated at Dec. 13, 2024 by Teachoo
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 (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
About the Author
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo