1.RELATIONS AND FUNCTIONS-MCQ

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V.RAJASEKARAN B.T ASST GHSS BARUR KRISHNAGIRI DT 635201 MOB NO: 9965791016

NAME ( IN CAPITAL LETTER INITIAL AT END EXAMPL RAMA.K) *

MOBILE NUMBER *

CLASS *

10TH -A E/M

10TH B

10TH C

Other:

Required

1. If n(A×B) = 6 and A = {1, 3} then n (B) is *

1 point

Other:

2. A = {a,b, p}, B = {2, 3}, C = {p,q,r,s} then n[(AUC)×B] is *

1 point

Other:

3. If A = {1,2}, B = { , , , }, 1 2 3 4 C = {5,6} and D = {5, 6, 7, 8} then state which of the following statement is true. *

1 point

(AXC) ⊂(BXD)

(BX D) ⊂ (A X C)

(A X B) ⊂ (A X D)

(D X A) ⊂ (BX A)

Other:

4. If there are 1024 relations from a set A = {1, 2, 3, 4, 5} to a set B, then the number of elements in B is *

1 point

Other:

5. The range of the relation R= {(X:X²} | X is a prime number less than 13} is *

1 point

{2,3,5,7}

{2,3,5,7,11}

{4,9,25,49,121}

{1,4,9,25,49,121}

6. If the ordered pairs (a + 2,4 ) and (5, 2a+b) are equal then (a, b) is *

1 point

(2,-2)

(5,1)

(2,3)

(3,-2)

7. Let n(A) m = and n(B) = n then the total number of non-empty relations that can be defined from A to B is *

1 point

Option 1

Option 2

Option 3

Option 4

8.If { (a,8),(6, b) } represents an identity function, then the value of a and b are respectively *

1 point

(8,6)

(8,8)

(6,8)

(6,6)

9.Let A = {1,2,3,4} and B = {4,8,9,10 }. A function f:A --> B: given by f = {(1 ,4),(2 ,8),(3 ,9),(4 ,10 )} is a *

1 point

Many-one function

Identity function

One-to-one function

into function

Other:

10. *

1 point

Option 3

1 point

12.Let f and g be two functions given by f = {(0 ,1),(2 ,0),(3 ,4),(4 ,2),(5 ,7)} g = {(0 ,2),(1 ,0),(2 ,4),(4 ,2),(7 ,0)} then the range of fog is *

1 point

{0,2,3,4,5 }

{-4,1,0,2,7 }

{1,2,3,4,5 }

{0,1,2}

13. *

1 point

14. If g = {(1 ,1),(2 3,),(3 ,5),(4 ,7)} is a function given by g (x) = (αx+β ) then the values of α and β are *

1 point

(-1,2)

(2,-1)

(-1,-2)

(1,2)

15. f(x) =(x+1)^3-(x-1)^3 represents a function which is *

1 point

linear

cubic

reciprocal

quadratic

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