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ECAT Mathematics Online Test MCQs With Answers
Question # 1
Multiplying each side of an inequality by (-1) will:
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Not effect
Change the sign
Become zero
Not defined
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Question # 2
It is not possible to find the exact value of
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π
√9
∛27
√1
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Question # 3
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Question # 4
The matrix A = [aij]mxn with m≠n is
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Rectangular
Symmetric
Square
None
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Question # 5
A triangle has six
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side
elements
angle
tangents
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Question # 6
In a quadratic equation with leading co-efficient 1, a student reads the co-obtain the roots as - 15 and -4. The correct roots are
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6, 10
-6, -10
8, 8
-8, -8
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Question # 7
x = r2, y = 1 are the parametric equation of
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Circle
Hyperbola
Ellipse
Parabola
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Question # 8
Power set of difference set N-W is
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Empty set
Infinite set
Singleton set
{0,∅}
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Question # 9
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Question # 10
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Question # 11
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Question # 12
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Question # 13
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Question # 14
150°= ______
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Question # 15
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Question # 16
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Question # 17
The set of the first elements of the ordered pairs forming a relation is called its
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Function on B
Range
Domain
A into B
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Question # 18
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30°
60°
45°
None of these
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Question # 19
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Question # 20
Sin-1(-x)=
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x
-x
-sin-1 x
cos-1 x
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Question # 21
Domain of cosh x is
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R
R -{0}
[1,∞)
[0,∞)
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Question # 22
The null vector is regarded to be perpendicular to
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Every vector
In some cases
Both a b
None
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Question # 23
If a, b, c are in AP., a, b, c are in G.P. then A, m
2
b, c are in
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A.P.
G.P.
H.P.
None of these
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Question # 24
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Question # 25
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(-1, 2)
(-1, 1)
(1, 2)
{-1}
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Question # 26
(fog)′(x) =f′(g(x))g′(x) is derivative by
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Chain rule
Reciprocal rule
Power rule
Product rule
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Question # 27
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6x + 2 + c
6x + x
2
+ c
6x
3
+ x
2
+ x
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Question # 28
The set of complex numbers forms a group under the binary operation of
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Addition
Multiplication
Division
Subtraction
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Question # 29
The unit vector along x-axis is
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none of these
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Question # 30
We solve the system of non-homogeneous linear equations by
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a and b
b and c
c and a
a,b and c
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Question # 31
The roots of (x - a)(x - b) = ab x2 are always
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Real
Depends upon a
Depends upon b
Depends upon a and b
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