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ECAT Mathematics Online Test MCQs With Answers
Question # 1
The angle between lines xy =0 is
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45°
60°
90°
180°
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Question # 2
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(-6,4)
(-3,2)
(6,-4)
(3, -2)
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Question # 3
Which element is the additive inverse of (a,b) in Complex numbers
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(a,0)
(0,b)
(a,b)
(-a,-b)
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Question # 4
The proposition S(n) for any n∈ N is only true if k∈ N and
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S(k +1) is true
S(1) is true and S(k+1) is true whenever S (k) is true
S(k+1) is true whenever S (k) is true
S(k) is true
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Question # 5
f(x) = 2x
2
+ 3x + 5 is a
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trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 6
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Question # 7
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0
-1
1
not defined
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Question # 8
i
3
=
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-1
i
-i
1
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Question # 9
A - B = ______
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Question # 10
Tan(
α
-
β
)=
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Question # 11
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Two real roots
Two positive roots
Two negative roots
One positive and one negative root
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Question # 12
{x : xε Z and x < 1} is
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Singleton set
A set with two points
Empty set
None of these
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Question # 13
The graph of linear equation 2x + 3y = 10
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Parabola
Circle
Hyperbola
Straight line
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Question # 14
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Question # 15
sin
2
α
cos
2
α
=
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-1
0
1
None of these
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Question # 16
The sum of first n even number is
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n2
n(n+1)
n+1
n+2
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Question # 17
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Question # 18
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Question # 19
Sec 30° = ______
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Question # 20
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none of these
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Question # 21
Φ set is the _______ of all sets
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Subset
Union
Universal
Intersection
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Question # 22
The mid point of the line segment joining the points A(3,1) and B(-2,-4) is
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(1, -3)
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Question # 23
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additive property
multiplicative property
additive identity
multiplicative identity
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Question # 24
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3
2
8
0
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Question # 25
An open sentences formed by using the sign of equality '=' is called ______
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An identity
An equation
A polynomial
None of these
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Question # 26
The law of sines is
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Question # 27
The distance of the point (a, b) from x-axis is
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a
b
a + b
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Question # 28
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Question # 29
What is the number of elements of the power set of {0, 1}
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1
2
3
4
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Question # 30
Maximum value of z =15x +20y subject to 3x+ 4y≤ 12,x,y≥ 0 is given by
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46
60
50
70
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Question # 31
The period of tan x/7 is
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3π
7π
15π
5π
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