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Mathematics ECAT Pre Engineering Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
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2
4
8
12
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Question # 2
f(x) = sin x + cos
2
x is
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trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 3
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-1
1
2
-2
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Question # 4
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Question # 5
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Question # 6
f(x) = x is
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trigonometric function
exponential function
quadratic function
identify function
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Question # 7
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 # 8
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Question # 9
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 # 10
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sin h x
cos h x
tan h x
cot h x
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Question # 11
Domain of cosh x is
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R
R -{0}
[1,∞)
[0,∞)
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Question # 12
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One-to-one and onto
One-to-one but not on to
Onto but not one-to-one
Neither one-to-one nor onto
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Question # 13
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sin h x
cos h x
sec h x
cosec h x
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Question # 14
If a variable y dependents on a variable x in such a way that each value of x determines exactly one value of y, then we say that
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x is function of y
y is a function of x
y is independent variable
x is real valued function
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Question # 15
If f(x) = -x
2
then f(-2) is
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-2
2
-4
4
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Question # 16
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0
1
1/2
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Question # 17
If f(x) = x
2
- x then f(2) is
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4
6
2
0
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Question # 18
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0
1
none of these
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Question # 19
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[0,1[
[0, 1]
]0, 1[
None of these
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Question # 20
If f(x) = x
2
-x then f(0) is
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0
1
2
3
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Question # 21
f(x) = 2x
2
+ 3x + 5 is a
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trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 22
f(x) = log x + 3 is a
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trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 23
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 # 24
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x = f(y)
y = f(x)
x = f(x)
y = f(y)
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Question # 25
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-2
-1
1
2
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Question # 26
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3/4
r
v
None of these
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Question # 27
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Question # 28
If f(x) = x
2
then f(0) is
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0
1
2
none of these
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Question # 29
For f(x) = x
2
+ px +1, if f(3) = 3 then P =
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3/7
-2/5
-7/5
-7/3
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Question # 30
f (x) = | x | is a/an
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Injective function
Bijective function
Surjective function
Implicit function
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Question # 31
The range of inequality x + 2 > 4 is
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(-1, 2)
(-2, 2)
(1,
∞
)
None
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