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Mathematics ECAT Pre Engineering Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
Choose an answer
images
pre-images
constants
none of these
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Question # 2
f(x) = x is
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trigonometric function
exponential function
quadratic function
identify function
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Question # 3
f(x) = 3x
4
-2x
2
+ 7 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 # 4
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1
0
-2
3
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Question # 5
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Question # 6
If f(x) = (-x)
2
then f(-2) is
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0
2
-4
4
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Question # 7
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Question # 8
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0
1
1/2
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Question # 9
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Question # 10
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1/8
1/2
1/4
1/6
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Question # 11
xy= 2 is:
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a constant function
an identity function
an improper function
implicit function
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Question # 12
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 # 13
Inverse of the function y-10x is
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y=logx
y=lnx
x=10y
x=10y
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Question # 14
If f(x) = x
3
- 2x
2
+ 4x -1 then f(2) is
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7
-16
16
-9
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Question # 15
If f(x) = x
2
- x then f(-2) is
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4
6
2
0
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Question # 16
cos h
2
x + sin h
2
x
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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 # 17
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quadratic function
constant function
linear function
exponential function
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Question # 18
f(x) = 1 is
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identity function
constant function
linear function
quadratic function
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Question # 19
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sin h x
cos h x
tan h x
cot h x
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Question # 20
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Question # 21
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Question # 22
sec h x = ________
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Question # 23
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π
2π
π/2
None of these
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Question # 24
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Question # 25
The domain of y = cos-1 x is
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-∞ < x < ∞
-1≤ x≤ 1
x≤ -1 or x ≥ 1
None of these
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Question # 26
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 # 27
f(x) = log x + 3 is a
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trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 28
If f(x) = -x
3
then f(-2) is
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-2
-4
-8
8
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Question # 29
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quadratic function
constant function
trigonometric function
linear function
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Question # 30
If f(x) = x
2
then f(-2) is
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-2
2
4
-4
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Question # 31
If f(x) = -x
2
then f(-2) is
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-2
2
-4
4
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