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ECAT Mathematics Online Test MCQs With Answers
Question # 1
Associative law of multiplication
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ab = ba
a(bc) = (ab) c
a(b+c) = ab + ac
(a + b)c = ac + bc
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Question # 2
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Question # 3
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cos 2x
2 cos 2x
2 sin2x
-2 cos2x
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Question # 4
Every set is an improper subset of
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Empty set
Equivalent set
Itself
Singleton set
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Question # 5
For all points (x,y) on x-axis
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x is positive
x is negative
y = 0
y is negative
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Question # 6
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Question # 7
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none of these
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Question # 8
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0
-1
1/2
1
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Question # 9
The point of concurrency of the medians of a triangle is called
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incentre
circumcentre
e-centre
centroid
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Question # 10
Arithmetic mean between 14 and 18 is
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16
17
15
32
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Question # 11
The mid point of the line segment joining the points (a,b) and (b,a) is
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Question # 12
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Question # 13
Tangent is ...............function
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Inverse
one-one
in-to
Periodic
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Question # 14
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Question # 15
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1
0
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Question # 16
w
-1
= ______
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0
1
w
w
2
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Question # 17
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Question # 18
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 # 19
tan
θ
/2
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Question # 20
What is the axis of the parabola y
2
= 4ax?
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x = 0
y = 0
x = a
y = 0
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Question # 21
If a > 0 they parabola y2 =-4ax lies in
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I and iv quadrant
I quadrant
II and III quadrant
All are incorrect
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Question # 22
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 23
The contra positive of p → q is
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q → p
~q→~q
~p→~q
None of these
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Question # 24
The inclination of a line parallel to x-axis is
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Question # 25
One degree is denoted by
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1
0
1'
1"
1 rad
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Question # 26
The discriminant of the quadratic equation ax
2
+ bx + c = 0 is
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b
2
+ 4ac
b
2
- 4ac
4ac - b
2
a
2
- 4ac
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Question # 27
A number A is said to be the A.M between the two numbers a and b if a, A, b are in
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A.M
A.P
G.P
G.M
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Question # 28
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Question # 29
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Associative law of addition
Commutative law of addition
Additive identity
Closure law of addition
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Question # 30
The A.M. of two numbers is 34 and G.M. is 16, the numbers are
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2 and 64
64 and 3
64 and 4
None of these
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Question # 31
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0
1
2
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