Write the set {x : x is a positive integer and `x^(2) < 40`} in the roster form.

Which of the following sets are equal? X = {2, 4, 6, 8} Y = {x : x is a posiitive even integer and 0ltxlt10 }

Match each of the set on the left described in the roster form with the same set on the right described in the set-builder form : (i) {P, R, I, N, C, A, L} (a) { x : x is a positive integer and is a divisor of 18} (ii) { 0 } (b) { x : x is an integer and x^(2) – 9 = 0 } (iii) {1, 2, 3, 6, 9, 18} (c) {x : x is an integer and x + 1= 1 } (iv) {3, –3} (d) {x : x is a letter of the word PRINCIPAL}

Examine whether A= { x:x is a positive integer divisible by 3} is a subset of B= { x:x is a multiple of 5, x∈N }.

Which of the following pairs of sets are disjoint { x : x is an even integer } and { x : x is an odd integer}

Match roster forms with the set builder form. (i) {p,r,I,n,c,a,l} (a) {x : x is a positive integer and is a divisor of 18} (ii) {0} (b) {x : x is an integer and x^(2)-9=0} (iii) {1,2,3,6,9,18} (c) {x : x is an integer and x+1=1} (iv) {3,-3} (d) {x : x is a letter of the word PRINCIPAL}

In the following, state whether A = B or not: A = {2, 4, 6, 8, 10} B = { x : x is positive even integer and x ≤ 10 }

List all the elements of the following sets : C = {x : x is an integer, x^(2) ≤ 4 }

if f(x)=(a-x^n)^(1/n), where a > 0 and n is a positive integer, then f(f(x))= (i) x^3 (ii) x^2 (iii) x (iv) -x

Taking the set of natural numbers as the universal set, write down the complements of the following sets: { x : x is a positive multiple of 3}

Taking the set of natural numbers as the universal set, write down the complement of the set: {x:x is a positive multiple of 3}