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Online Tests
Mathematics ECAT Pre Engineering Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
f(x) = x
3
is:
Choose an answer
an odd function
an even function
an implicit function
a quadratic funtion
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Question # 2
f(x) = 2
x
+ 3 . 2
2x
+ 5 is
Choose an answer
trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 3
Choose an answer
1/8
1/2
1/4
1/6
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Question # 4
f (x) = | x | is a/an
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Injective function
Bijective function
Surjective function
Implicit function
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Question # 5
f(x) = 3x
4
-2x
2
+ 7 is:
Choose an answer
an even function
an odd function
an even and implicit function
neither even nor a odd
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Question # 6
Choose an answer
2
-2
none of these
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Question # 7
The trigonometric function are continuous whenever
Choose an answer
They are defined
their limit exist
Their period is given
All are incorrect
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Question # 8
If f(x)= x
3
then f(-2) is
Choose an answer
-2
-4
-8
8
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Question # 9
xy= 2 is:
Choose an answer
a constant function
an identity function
an improper function
implicit function
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Question # 10
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Question # 11
If f(x) = x
2
-x then f(0) is
Choose an answer
0
1
2
3
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Question # 12
Choose an answer
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 # 13
An even function is symmetric about the line
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y = x
x = 0
y = -x
y = 0
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Question # 14
If f (x) = 2x+1 then fof (x) = _______;
Choose an answer
4x+3
2x +3
4x +1
None of these
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Question # 15
Which of the following function form 1 to itself are bi-jective
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F(x) = x + 3
F(x) = x
5
F(x) = 3x + 2
F(x) = x
2
+ x
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Question # 16
Choose an answer
0
-4
none of these
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Question # 17
A rule that assigns to each elements x in X a unique element y in Y is called a ____________
Choose an answer
domain
range
function
none of these
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Question # 18
Choose an answer
1
0
-2
3
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Question # 19
f(x) = log x + 3 is a
Choose an answer
trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 20
For f(x) = x2, what is the value of f(a) +f (-a) in terms of a?
Choose an answer
3a2
2a2
2a
-7a
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Question # 21
The period sin
2
θ
is
Choose an answer
π
2
π
2
π
π/2
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Question # 22
The domain and range of a trigonometric function can be allocate by their
Choose an answer
graph
Continuity
Discontinuity
Periods
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Question # 23
Choose an answer
f(x) = x
2
f(x
2
) = x
f(x) = x
none of these
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Question # 24
Choose an answer
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Question # 25
The largest possible domain of the function:
y=√(x ) is:
Choose an answer
(0 ,∞)
12
(3 , 12)
( 3 ,∞)
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Question # 26
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Question # 27
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 # 28
Choose an answer
(1,7/3)
(1, 7/5)
(1, 11/7)
(1, 3/5)
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Question # 29
Choose an answer
sin h x
cos h x
tan h x
cot h x
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Question # 30
Choose an answer
2
1
5
0
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