Relations and Functions

Relations and Functions

Question

Match the four sets in table 1 given in set-builder form with those given in table 2 in roster form:

Table 1

Table 2

(a) {x : x is an integer and x2 + x = 0}

(b) {x : x ∊ N, x < 5}

(c) {x : x is a positive-integer and is a divisor of 10}

(d) {x : x is positive integer and x2 < 9}.

(i) {1,2,5,10}

(ii) {1,2,3,4}

(iii) {1,2}

(iv) {0,-1}

 

Answer

 

Table 1

Table 2

(a) {x : x is an integer and x2 + x = 0}

(b) {x : x ∊ N, x < 5}

(c) {x : x is a positive-integer and is a divisor of 10}

(d) {x : x is positive integer and x2 < 9}.

(iv) {0,-1}

(ii) {1,2,3,4

(i) {1,2,5,10}

(iii) {1,2}

 

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