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ECAT Mathematics Online Test MCQs With Answers
Question # 1
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all
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Question # 2
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 # 3
Domain of cot x is ______
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Question # 4
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Question # 5
The domain of y =√(x^2-9) is
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R
(0 , +∞)
(-∞ , -3 )∪ (3 , +∞)
(0 ,∞)
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Question # 6
Name the property used in a (b-c) = ab - ac
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commutative property of multiplication
distributive property of multiplication
associative property of multiplication
multiplicative inverse
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Question # 7
The 7th term of (3
8
+ 6
4
x)
11/4
is
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-19217/3 x
6
189/2 6
4
x
2227/12 x
3
-19712/3 x
6
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Question # 8
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Question # 9
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cos 2x + c
- cos 2x + c
tan 2x + c
cot 2x + c
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Question # 10
A function f is said to be an even if f(-x) =
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0
1
f(x)
-f(x)
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Question # 11
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3K
K2
K3
K
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Question # 12
A number A is called the arithmetic mean between a and b if a, A, b is ______
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Arithmetic sequence
Geometric sequence
Harmonic sequence
Arithmetic sequence
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Question # 13
The real number system contains.
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Positive Numbers
Negative numbers
Zero
(option a, b and c)
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Question # 14
What is the number of elements of the power set of { }
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0
1
2
3
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Question # 15
QUQ, =
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N
R
W
Z
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Question # 16
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Question # 17
If x
2
+ px + 1 is a factor of ax
3
+ bx +c, then
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a
2
+ c
2
= -ab
a
2
- c
2
= -ab
a
2
- c
2
= ab
None of these
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Question # 18
The number of terms in the expansion of (a + b)
9
is
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10
11
9
12
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Question # 19
Every set is an improper subset of
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Empty set
Equivalent set
Itself
Singleton set
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Question # 20
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Question # 21
The centre of the circle x2+y2 -2fx-2gy+x=0 is
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(-g,-f)
(g,f)
(f,g)
(-f,-g)
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Question # 22
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Question # 23
If f(x) = x
3
- 2x
2
+ 4x -1, then f(-2) = ?
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0
-25
5
45
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Question # 24
How many arrangements of the letters of the word ADDING can be made
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Question # 25
Arithmetic mean between x - 3 and x + 5 is
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x + 1
x + 2
x + 3
x + 4
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Question # 26
x = secθ,y = tanθ are the parametric equations of
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Circle
Hyperbola
Ellipse
parabola
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Question # 27
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(1, 3)
(-1, -3)
(1, -3)
(-1, 3)
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Question # 28
The solution set of the equation tan
-1
x - cot
-1
x = cos
-1
(2 - x) is
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[0, 1]
[-1, 1]
[1, 3]
None of these
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Question # 29
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Question # 30
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Question # 31
If x
3
- x
2
+ 5x
+ 4 is divided by x - 2, then the reminder is
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0
2
18
14
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