Mathematics MCQS for class 12 with Answers Chapter 1

Which one is a constant function?

f(x) = x

f(x) = 14

f(x) = 2x²

f(x) = 3x + 1

If f(x)=?

-2

0

4

2

If y is an image of x under the function f, we denote it by

y = f(x)

x = f(y)

f(x,y) = c

x = y

In a binary relation, the set consisting of all the first elements of the ordered pairs is called

Function

Range

Domain

Cartesian product

If P is the perimeter of a square and A is its area then P=

2?A

3?A

?A

4?A

If f(x) = x³– 2x²+ 4x – 1, then f(1) = ___________

2

1

-1

3

If A = ( 1 , 2) the number of elements in A x A are

8

6

2

4

Sin h^-1x =

x²+1

ln(x+?x²+1)

ln(x-?x²+1)

ln(x+1/x-1)

f(x) is even function. if and only if

f(-x) = f(x)

f(x) = -3f(-x)

f(x) = 3f(-x)

f(-x) = -f(x)

If f(x)=?(x+4) then f(x-1)=

?(x-1)

?(x+3)

?(x+1)

3