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Mathematics ECAT Pre Engineering Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
Choose an answer
-2
-1
1
2
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Question # 2
f(x) = ax + b will be a constant function if
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a = 1 , b = 1
a = 1 , b = 0
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Question # 3
Every relation, which can be represented by a linear equation in two variables, represents a
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Relation
Cartesian product
Function
Graph
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Question # 4
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 # 5
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2
6
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Question # 6
f(x) = C is
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identity function
constant function
linear function
quadratic function
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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
The periods of the function f(x) = x[x] is
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1
2
Non periodic
None of these
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Question # 9
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0
1
-1
none of these
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Question # 10
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image
pre-image
constant
none of these
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Question # 11
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 # 12
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 # 13
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 # 14
If f(x) = x
2
-x then f(0) is
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0
1
2
3
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Question # 15
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Question # 16
If f(x) = x + 1 then f(z
2
-1) is
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z
2
z
2
+ 2
z
2
- 2
none of these
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Question # 17
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 # 18
f(x) = 1 is
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identity function
constant function
linear function
quadratic function
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Question # 19
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range of f
domain of f
both (a) and (b)
none of these
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