maths one marks test

If the range of a function is a Singleton set then, it is

• constant function

• An identity function

• bijective functfunction

• An one one function

Composition of function is

• Commutative

• Associative

• Not associative

• Commutative and associative

If {(5, 6), (7, x) (8, 6) } represent a constant function then the value of x is

• 8

• 6

• 7

• 5

If f={(5, 3), (6, 4), (4, 5) } then the pre image of 4 is

• 5

• 3

• 4

• 6

If n(A) =p, n(B) =q, then the total number of relations that exist from A to B is

• 2^pq

• 2^p

• (pq) ²

• ^2p-q

If gog(k) =-1 where g(k) =4x+3, then k=

• 1

• 7

• -7

• -1

If the range and the co domain are equal then, the function is

• One- oneone function

• Onto function

• Constant function

• None of the above

If n(A×B) =6and A={1, 3} then n(B) is

• 1

• 2

• 3

• 6

The diagram represents a function which is

• One one

• Into

• Onto

• Bijection

Father if geometry

• Ramanujan

• Eculid's

• Rene Descards

• Archimedes