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ECAT Pre General Science Mathematics 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
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images
pre-images
constants
none of these
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Question # 3
f(x) = x is
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trigonometric function
exponential function
quadratic function
identify function
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Question # 4
x = secθ,y = tanθ are the parametric equations of
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Circle
Hyperbola
Ellipse
parabola
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Question # 5
p(x) = 2x
4
- 3x
3
+ 2x - 1 is polynomial of degree
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1
2
3
4
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Question # 6
The domain of y =√(x^2-9) is
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R
(0 , +∞)
(-∞ , -3 )∪ (3 , +∞)
(0 ,∞)
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Question # 7
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 # 8
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 # 9
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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Question # 10
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0
1
none of these
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Question # 11
f(x) = 2
x
+ 3 . 2
2x
+ 5 is
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trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 12
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Question # 13
f(x) = 3x/x
2
+ 1 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 # 14
A function of the form p(x)/Q(x) is called:
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Rational function
Logarithmic function
Exponential function
Hyperbolic function
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Question # 15
If the function y=2x -3, what is the preimage of 11?
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11
7
5
2
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Question # 16
Composition of functions is
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Non-commutative (fg ≠ gf)
non-associative [8(fh) ≠(8f)h]
Commutative (fg = gf)
f of-1≠ 1
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Question # 17
A function f is said to be an even if f(-x) =
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0
1
f(x)
-f(x)
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Question # 18
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 # 19
The range of function f(x)=-x2+2x-1 is
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R
(-∞,0]
(-∞,1]
[0,∞)
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Question # 20
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sin h x
cos h x
sec h x
cosec h x
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Question # 21
If f(x) = cos x then f(0) is
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0
1
1/2
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Question # 22
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Question # 23
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Question # 24
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f(x) = x
2
f(x
2
) = x
f(x) = x
none of these
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Question # 25
If f(x) = tan x then f(0) is
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0
1
1/2
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Question # 26
f(x) = 1 is
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identity function
constant function
linear function
quadratic function
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Question # 27
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0
-2
1
4
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Question # 28
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 # 29
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Question # 30
If f(x) = x
2
-x then f(0) is
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0
1
2
3
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Question # 31
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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