Neha is doing a designing course. She is working on cartesian art now-a-days. For it she wants to take x-coordinate from the set A = {0, 1, 2, 3, 5} and y-coordinate from set B = {–3, –2, –1, 0, 1, 2, 3}. Based on this information answer the following questions.
(i) How many ordered pairs Neha can make from A to B?
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Given : she wants to take x-coordinate from the set A = {0, 1, 2, 3, 5} and y-coordinate from set B = {–3, –2, –1, 0, 1, 2, 3}.
To Find : How many ordered pairs Neha can make from A to B
Solution:
set A = {0, 1, 2, 3, 5}
=> n(A) = 5
set B = {–3, –2, –1, 0, 1, 2, 3}.
=> n(B) = 7
ordered pairs = n(A) * n(B)
= 5 ( 7 )
= 35
35 ordered pairs
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