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Online Tests
ECAT Pre General Science Mathematics Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
If f(x) = tan x then f(0) is
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0
1
1/2
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Question # 2
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[0,1[
[0, 1]
]0, 1[
None of these
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Question # 3
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Question # 4
Sin h
-1
x = _________
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Question # 5
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2
4
8
12
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Question # 6
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Question # 7
The set of points {(x,y)|y = f(x),∀x∈} is called
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Relation
Graph of f
Function
All are correct
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Question # 8
If the domain of the function f: x⟶ 2x
3
+ 1 is {-1,2,3}, the range of the function is
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{3,2,5}
{1,3,9}
{-1,-2,-3}
{3,9,19}
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Question # 9
If f(x) = x
2
then f(-2) is
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-2
2
4
-4
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Question # 10
What is range of the function g (x) =|x-3|?
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[0 ,∞ )
(0 ,∞)
(-∞ ,3]
[0,∞)
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Question # 11
If f(x) = x
3
- 2x
2
+ 4x -1, then f(-2) = ?
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0
-25
5
45
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Question # 12
Which is an explicit function
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y = x
2
+ 2x - 1
x
2
+ xy + y
2
= 2
x
2
+ y
2
= xy + 2
All are
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Question # 13
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image
pre-image
constant
none of these
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Question # 14
Graph of the question x
2
+ y
2
= 4 is
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A circle
An ellipse
A parabola
A square
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Question # 15
Domain of y = scs x is
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All real numbers except π/2 + n*π
R
All negative integers
None of these
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Question # 16
The function f(x) =|x| is a/an_______function
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Even
Odd
Both even as well as odd
Neither even nor odd
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Question # 17
The domain and range of a trigonometric function can be allocate by their
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graph
Continuity
Discontinuity
Periods
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Question # 18
The range of y=x2 + 1 is the set of non-negative real numbers except
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0≤ y < 1
0 < y < 1
0≤ y≤ 1
0 < y≤1
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Question # 19
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 # 20
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 # 21
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range of f
domain of f
both (a) and (b)
none of these
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Question # 22
The domain of the function x/x
2
-4 is given by
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R
R + 2
[R - (
+
2)
R-4
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Question # 23
x = secθ,y = tanθ are the parametric equations of
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Circle
Hyperbola
Ellipse
parabola
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Question # 24
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One-one but not onto
One-one and onto
Onto but not one-one
Neither one-one nor onto
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Question # 25
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0
1
2
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Question # 26
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sin h x
cos h x
tan h x
cot h x
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Question # 27
The domain of f(x) = log x is
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[0,
∞
]
(0,
∞
)
[0,
∞
[
[
∞
,
∞
]
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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
If f(x) = x
2
-x then f(0) is
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0
1
2
3
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Question # 30
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 # 31
f(x) = log x + 3 is a
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trigonometric function
algebraic function
exponential function
logarithmic function
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