NCERT class 11 maths chapter 1 Sets
Question 1:Let U = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = { 1, 2, 3, 4}, B = { 2, 4, 6, 8 } and C = { 3, 4, 5, 6 }. Find (i) A¢ (ii) B¢ (iii) (A È C)¢ (iv) (A È B)¢ (v) (A¢)¢ (vi) (B – C)¢
Exercise 1.5 maths class 11 Chapter 1 Sets
Question 2:If U = { a, b, c, d, e, f, g, h}, find the complements of the following sets : (i) A = {a, b, c} (ii) B = {d, e, f, g} (iii) C = {a, c, e, g} (iv) D = { f, g, h, a}
CBSE class 11 maths ncert solutions Chapter 1
Question 3:Taking the set of natural numbers as the universal set, write down the complements of the following sets: (i) {x : x is an even natural number} (ii) { x : x is an odd natural number } (iii) {x : x is a positive multiple of 3} (iv) { x : x is a prime number } (v) {x : x is a natural number divisible by 3 and 5} (vi) { x : x is a perfect square } (vii) { x : x is a perfect cube} (viii) { x : x + 5 = 8 } (ix) { x : 2x + 5 = 9} (x) { x : x ³ 7 } (xi) { x : x Î N and 2x + 1 > 10 }
class 11 maths solutions Sets
Question 4:If U = {1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = {2, 4, 6, 8} and B = { 2, 3, 5, 7}. Verify that (i) (A È B)¢ = A¢ Ç B¢ (ii) (A Ç B)¢ = A¢ È B¢
NCERT class 11 chemistry chapter 1 exercise solutions
Question 5:Draw appropriate Venn diagram for each of the following : (i) (A È B)¢, (ii) A¢ Ç B¢, (iii) (A Ç B)¢, (iv) A¢ È B¢
Sets class 11 ncert solutions
Question 6:Let U be the set of all triangles in a plane. If A is the set of all triangles with at least one angle different from 60°, what is A¢?
Question 7:Fill in the blanks to make each of the following a true statement : (i) A È A¢ = . . . (ii) f¢ Ç A = . . . (iii) A Ç A¢ = . . . (iv) U¢ Ç A = . . .
