Question

If A = {5, 7, 9, 11}, B = {9, 10} let a R b means a < b. a $\in$ A, (a, b) $\in$ R, b $\in$ B. Then

• A. Co domain of R = {9, 10}
• B. Range of R = {9, 10}
• C. Relation of R = {(5, 9), (5, 10), (7, 9), (7, 10), (9, 10)}
• D. Domain of R = {5, 7, 9}

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A

Co domain of R = {9, 10}

B

Range of R = {9, 10}

C

Relation of R = {(5, 9), (5, 10), (7, 9), (7, 10), (9, 10)}

D

Domain of R = {5, 7, 9}

a R b mean a < b
Then R = Relation of the function R = {(5, 9), (5, 10), (7, 9), (7, 10), (9, 10)}

Domain = {5, 7, 9} $\to$ set of first component of all the ordered pair which belong to R

Co domain = {9, 10} $\to$ set B is called Co domain of Relation R

Range = {9, 10} $\to$ set of second components of all the ordered pairs which belong to R.