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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) = x
2
then f(-2) is
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-2
2
4
-4
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Question # 2
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Question # 3
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 # 4
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Question # 5
The domain of y =√(x^2-9) is
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R
(0 , +∞)
(-∞ , -3 )∪ (3 , +∞)
(0 ,∞)
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Question # 6
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 # 7
If f(x) = -x
2
then f(-2) is
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-2
2
-4
4
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Question # 8
f (x) = | x | is a/an
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Injective function
Bijective function
Surjective function
Implicit function
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Question # 9
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Question # 10
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0
1
1/2
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Question # 11
f(x) = 1 is
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identity function
constant function
linear function
quadratic function
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Question # 12
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Question # 13
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2
-2
none of these
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Question # 14
The range of the function f : x→ y is defined by
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{x| y = f (x) ∀x∈ X ∧y∈y}
{(x,y) |y = f (x)∀x∈ X}
{y|y = f (x) ∀x∈ X ∧y∈y}
Y
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Question # 15
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2
4
8
12
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Question # 16
Sin h
-1
x = _________
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Question # 17
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 # 18
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 # 19
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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