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ECAT Mathematics Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
Choose an answer
0
1
none of these
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Question # 2
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 # 3
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 # 4
The function discontinuous at x = 0 is (1) tan x (II) cot x (III) sec x (iv)cosec x)
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I & III
I & IV
II & IV
II & III
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Question # 5
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 # 6
tan h x = _________
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Question # 7
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Question # 8
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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 # 9
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 # 10
In common logarithm the base is
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1
0
10
e
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Question # 11
If x is an image of y under the function f. This can be written as
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y = f(x)
f(x) = 0
x = f(y)
f(y) =0
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Question # 12
Choose an answer
0
-4
none of these
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Question # 13
If f(x) = (-x)
2
then f(-2) is
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0
2
-4
4
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Question # 14
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Question # 15
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0
1
8
∞
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Question # 16
If f(x) = x
2
- x then f(-2) is
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4
6
2
0
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Question # 17
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Question # 18
The domain of y =√(x^2-9) is
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R
(0 , +∞)
(-∞ , -3 )∪ (3 , +∞)
(0 ,∞)
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Question # 19
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 # 20
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range of f
domain of f
both (a) and (b)
none of these
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Question # 21
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 # 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
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0
1
2
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Question # 24
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Question # 25
The only function which is both even and odd is
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f(x) =α
f(x) = x
f(x) =0
Both A & B
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Question # 26
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Question # 27
The period of the function f(x) = sin
4
x + cos
4
x is
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π
π
/2
2
π
None of these
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Question # 28
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2
6
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Question # 29
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 # 30
f(x) = x is
Choose an answer
trigonometric function
exponential function
quadratic function
identify function
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Question # 31
Choose an answer
-1
1
2
-2
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