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WORKBOOK

EXERCISES 6

1) Let ab ∈ R. If the ordered pairs (3a-1, 5b+2) and 5) If n (A X B) = 12 and n (A X C) = 10, then find
(a+7, 3b-4) are equal, find the values of a and b. the least possible value of n (B X C).

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2) If ( , x-1) = (y, 1) then find the value of y.
6) If n (A ∪ B) = 10, n (A B) = 4 and
n = 18, then find the number
of elements of A.

3) If (a, b-1, c) = (2, 1, -4) then find the value of
a+b+c.

7) The sets A = {0,1,2} and B={-1,-2} are given.
4) Let the sets A = {1,2,3}, B = {,1} and Draw the graph of AxB.
C = {, 1,2} be given.

a) Find the number of elements of A X B.

b) Write the set A X (B ∩ C) in listed form.

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c) Write the set in listed form.

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d) What is the number of ?

e) If there is a set D such that
A X D = {(1,1), (1,), (2,1),(2,), (3,1),(3,)}
then find D.

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