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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
The set Q
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Forms a group under addition
Does not form a group
Contains no additive indentity
Contains no additive inverse
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Question # 2
A diagonal matrix is always
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Identity
Triangular
Scalar
Non-singular
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Question # 3
Period of Tangent function is
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0°
-
π
π
2
π
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Question # 4
The expression x2 - x + 1 has
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One proper linear factor
No proper linear factor
Two proper linear factors
None of these
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Question # 5
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Question # 6
The point of concurrency of the angle bisectors of a triangle is called
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incentre
circumcentre
e-centre
centroid
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Question # 7
(a
-1
)
-1
=
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a
-1
a
-a
None of above
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Question # 8
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Question # 9
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Question # 10
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1
-i
i
0
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Question # 11
The ratio in which the line y- x+ 2 =0 divides the line joining (3,-1) and (8,9) is
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2:3
-2:3
3:2
-3:2
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Question # 12
If u = xi + yj, then|u|
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x
2
+ y
2
(x
2
+y
2
)
2
x
2
-y
2
√(x
2
+y
2
)
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Question # 13
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6x + 2 + c
6x + x
2
+ c
6x
3
+ x
2
+ x
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Question # 14
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Question # 15
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Reciprocal equation
Exponential equation
Radical equation
None of these
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Question # 16
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Question # 17
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f(x) = x
2
f(x
2
) = x
f(x) = x
none of these
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Question # 18
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 19
3/4 is ______
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An odd number
An even number
A natural number
A rational number
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Question # 20
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Question # 21
The line through the focus and perpendicular to the directrix is called ______ of the parabola
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axis
focal chord
tangent
latus rectum
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Question # 22
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Question # 23
x =r cosθ,y= sinθ are the parametric equations of
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Circle
Ellipse
Parabola
Hyoerbola
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Question # 24
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Question # 25
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 # 26
If f(x) = x
2
-x then f(1) is
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0
1
2
3
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Question # 27
Which is not included in the domain of cos
-1
x
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0
1
-1
2
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Question # 28
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The law of consines
The law of sines
The law of tangents
None of these
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Question # 29
w
-1
= ______
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0
1
w
w
2
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Question # 30
The difference of two consecutive terms of an A.P. is called ______
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General term
Common ratio
Common difference
None of these
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Question # 31
Cosec 60° = ______
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