Mathematics MCQS for class 12 with Answers Chapter 1

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Mathematics MCQS for class 12 with Answers


The function f(x) = ax + b is an identity function if
a= 1, b = 0
a = 1, b = 1
a = 0, b = 1
a = 0, b = 0

cos h2x – sin h2x =
-2
2
-1
1

In binary relation, the set consisting of all the first elements of the ordered pairs is called
Domain
Range
Cartesian product
Function

A function from Y to X is denoted as:
f : Y
f: Y
f: X
f : X

f(x) is even function, if and only if
f(x) = -3f(-x)
f(x) = 3f(-x)
f(-x) = -f(x)
f(-x) = f(x)

If y=f(x) then y is called:
Dependent Variable
Constant
None of these
Value of f

In y = f(x), the variable y is called ____________ variable of a function f
None of these
Pre-image of x
Dependent
Independent

The volume V of a cube as a function of the area Aof its base is:
V=A3/4
V=(A)2/3
V=A3/2
V=A1/3

For any set X, a function 1 : X
None of these
Linear function
Quadratic function
An identity function

f : x –> ?3x2-1 and 9 : x –> Sinx , then g of : x –>
?2 sin2x -1
?3x2 -1 sinx
sin ?3x2 – 1
sin(3x2 – 1)

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