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Mathematics ECAT Pre Engineering Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
Choose an answer
2
-1
8
not defined
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Question # 2
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-2
-1
1
2
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Question # 3
If f(x) = -x
2
then f(-2) is
Choose an answer
-2
2
-4
4
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Question # 4
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0
1
1/2
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Question # 5
The domain of f(x) = log x is
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[0,
∞
]
(0,
∞
)
[0,
∞
[
[
∞
,
∞
]
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Question # 6
If f(x) = x
3
- 2x
2
+ 4x -1 then f(0) is
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0
1
-1
none of these
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Question # 7
If f(x) = cos x then f(0) is
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0
1
1/2
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Question # 8
If f (x) is defined and continuous then f (x) is always
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Rational function
Trigonometric function
Logarithmic function
All are correct
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Question # 9
If a tangent line touches the function y = f (x) in more than one point then y = f (x) is
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Periodic
Surjective
Bijective
Injective
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Question # 10
If f(x) = x
2
- x then f(-2) is
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4
6
2
0
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Question # 11
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Question # 12
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π
2π
π/2
None of these
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Question # 13
For f(x) = x2, what is the value of f(a) +f (-a) in terms of a?
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3a2
2a2
2a
-7a
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Question # 14
If f(x) = x
2
then f(-2) is
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-2
2
4
-4
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Question # 15
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0
1
1/2
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Question # 16
If f(α) = b2 and g (c) =d where c=b2 then (gof)(a) is
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α
c
b
d
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Question # 17
f(x) = 1 is
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identity function
constant function
linear function
quadratic function
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Question # 18
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Question # 19
f(x) = sin x is:
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an odd function
an even function
an implicit function
an exponential function
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