LotX = {1,2,3,4}, and consider binary relations R and S, both subsets of X X X, defined i defined as follows. (i) R = {(1,1), (1,2), (2,1), (2,2), (4,1)} and (ii) S = Ā N{(i, i)|i € X} 1. Precisely list the elements of R-1. Is R a function from X to X (Yes/No and Justify)? How many elements does S x R contain? (Equivalently, find |S X R.) Hustify your answer.)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let X = {1,2,3,4}, and consider binary relations R and S, both subsets of X X X,
defined
defined
as follows.
(i) R = {(1,1), (1,2), (2,1), (2,2), (4,1)} and
(ii) S= R_n{(i,t)\i e X}
1. Precisely list the elements of R-1.
Is R a function from X to X (Yes/No and Justify)?
How many elements does SX R contain? (Equivalently, find |S X R.)
Justify your answer.)
Transcribed Image Text:Let X = {1,2,3,4}, and consider binary relations R and S, both subsets of X X X, defined defined as follows. (i) R = {(1,1), (1,2), (2,1), (2,2), (4,1)} and (ii) S= R_n{(i,t)\i e X} 1. Precisely list the elements of R-1. Is R a function from X to X (Yes/No and Justify)? How many elements does SX R contain? (Equivalently, find |S X R.) Justify your answer.)
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