If `A = {p,q,r, s} and B = {1, 2, 3}`, find which of the following is not a function from A to B?
A. `R_1={(p,1),(q,2),(r,1),(s,2)}`
B. `R_2={(p,1),(q,1),(r,1),(s,1)}`
C. `R_3={(p,1),(q,2),(p,2),(s,3)}`
D. `R_4={(p,2),(q,3),(r,2),(s,2)}`
ANSWER: C

If A = {p,q,r, s} and B = {1, 2, 3} , find which of the following is not a function from A to B R 1​={(p,1),(q,2),(r,1),(s,2)}

If A = {p,q,r, s} and B = {1, 2, 3} , find which of the following is not a function from A to B? (i) R1={(p,1),(q,2),(r,1),(s,2)} (ii) R2={(p,1),(q,1),(r,1),(s,1)}

If A = {p,q,r, s} and B = {1, 2, 3} , find which of the following is not a function from A to B? i. R 1 ​ ={(p,1),(p,2),(r,1),(s,2)} ii.R 2 ​ ={(p,1),(q,2),(r,2),(r,3)}

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if P,q, r, s in R such that p r= 2 ( q+ s) then