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Online Tests
ECAT Pre General Science Mathematics Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
What is range of the function g (x) =|x-3|?
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[0 ,∞ )
(0 ,∞)
(-∞ ,3]
[0,∞)
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Question # 2
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Question # 3
The area of circle of unit radius =
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0
1
4
π
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Question # 4
If f(x) = (-x)
2
then f(-2) is
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0
2
-4
4
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Question # 5
If f(x) = x
2
then f(-2) is
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-2
2
4
-4
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Question # 6
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Does not exist because f is unbounded
Is not attained even though f is bounded
Is equal to 1
Is equal to -1
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Question # 7
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0
3
9
-3
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Question # 8
The range of function f(x)=-x2+2x-1 is
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R
(-∞,0]
(-∞,1]
[0,∞)
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Question # 9
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Question # 10
sin h x = ___________
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Question # 11
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Question # 12
if the value of the sphere, v =4/3πr
2
,
then the which of the following statement is true?
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r is the function of v
v is the function ofπ
π is independent variable
None of these
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Question # 13
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[0,1[
[0, 1]
]0, 1[
None of these
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Question # 14
If f(x) = cos x then f(0) is
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0
1
1/2
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Question # 15
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Question # 16
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Question # 17
f(x) = x
3
is:
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an odd function
an even function
an implicit function
a quadratic funtion
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Question # 18
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0
1
-1
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Question # 19
If f(x) = -x
2
then f(-2) is
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-2
2
-4
4
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Question # 20
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Question # 21
f(x) = x3-x/x2+1 is :
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an even function
an odd function
an even and implicit function
neither even nor a odd
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Question # 22
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2
4
8
12
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Question # 23
π
is the period of the function
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|sin x| + |sin x|
sin
4
x + cos x
sin (sin x) + sin (cos x)
None of these
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Question # 24
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Question # 25
The value of x which is unchanged by the mapping in the function defined by f ; x⟶ x
2
+ 5x -5 for x> 0 is
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1
5
-5
-1
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Question # 26
A function from X to X is denoted as
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f : X to Y
f : Y to Y
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Question # 27
If f (x) = 2x+1 then fof (x) = _______;
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4x+3
2x +3
4x +1
None of these
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Question # 28
The period sin
2
θ
is
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π
2
π
2
π
π/2
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Question # 29
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Question # 30
If the function y=2x -3, what is the preimage of 11?
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11
7
5
2
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Question # 31
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sin h x
cos h x
tan h x
cot h x
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