Question

3. Write the following sets in the tabular form and find the
U A = {x|x is a prime factor of 210)
(1) B = {xxx e Wand xx.x < 20}
(1) C = {x}. is a letter of the word MATHEMATICS)
(2) D = {x|x is a three-digit number made by the digits 1, 2, 3)
4. Write the cardinal number of each of the following sets.
A = 13.7.8.12.20)
(i) B = {x|x is a proper divisor of 20)
() C = {x|x is an odd natural number less than 15}
(iv) D = {x|x e W and 3x + 2 = 0)
(v) E = {x|x eI and -15xs1)
(vi) F = (x/x is a non-negative integer and x < 4}
5. Find n(A) in each case.
(1) A = {0. 4.6.8)
(it) A = {letters of the word GOOD)
(1) A = {x|x eN and xxx<31)
(iv) A = {x|x EW and 5x = 3)
(v) A = (x|x is a prime factor of 36036} (vi) A = {x}. is a prime factor of 2310
ANSWERS
(1) Infinite set
(iv) Infinite set
(v) Finite set
(vi) Infint
1. (0) Finite set 1) Finite set
(vFinite set (vi) Finite set
2. 1.) and iv)
3. A = 12.3.57): 4 ) B = {012 & 4): 5 t) C = {M, A.T.H.E.I.C.S): 8​

Answer 1

Step-by-step explanation:

A = {x|x is a prime factor of 210)