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ECAT Mathematics Online Test MCQs With Answers
Question # 1
The symbol ______ shall be used both for equation and identity
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Question # 2
Group of none-singular matrices under multiplication is
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None-Abelian group
Semi group
Abelian group
None of these
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Question # 3
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Question # 4
The n numbers A
1
,A
2
,A
3
,.....A
n
are called an arithmetic means between a and b if a.A
1
,A
2
,A
3
.....A
n
, b is ______
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An arithmetic series
An arithmetic sequence
A geometric sequence
A harmonic sequence
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Question # 5
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Question # 6
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2 b
2 a
2 ab
a + b
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Question # 7
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Question # 8
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Question # 9
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Question # 10
If C is the mid point of AB and P is any point outside AB, then
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Question # 11
Name the property used in 1000 x 1 = 1000
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additive inverse
multiplicative inverse
additive identity
multiplicative identity
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Question # 12
If you are looking a bird in the tree from the ground then the angle formed is called angle of______;
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Elevation
Depression
Right angle
None of these
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Question # 13
If p and q are two statements then their biconditional 'p if q' is denoted by
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Question # 14
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Question # 15
The domain of y = cos-1 x is
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-∞ < x < ∞
-1≤ x≤ 1
x≤ -1 or x ≥ 1
None of these
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Question # 16
Optimize means ______ a quantity under certain constraints
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Minimize
Maximize
Maximize or minimize
None of these
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Question # 17
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4x + 1
4x
2x
3
none of these
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Question # 18
If a,b,c are in arithmetic progression, then 1/a,1/b.1/c are in
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A.M
G.M
H.M
G.P
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Question # 19
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Question # 20
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2x cos x2
-2xcosxsinx
2x Sin x2
-Sin x2
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Question # 21
Which of the following has the same value as i113
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i
-1
-i
1
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Question # 22
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1
5
7
9
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Question # 23
The number of divisors of 1029, 1547 and 122 are in
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A.P.
G.P.
H.P.
None of these
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Question # 24
A circle which touches one side of a triangle externally and the other two sides produced is called ______
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In-circle
Circum cirle
Escribed circle
None of these
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Question # 25
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Question # 26
The set of months in a year beginning with S.
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{September, October, November}
Singleton set
Null set
Empty set
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Question # 27
The real numbers which satisfy an inequality form its
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solution
coefficient
domain
range
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Question # 28
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Question # 29
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 # 30
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Question # 31
IfΔABC is right, law of cosine reduce to
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Law of sine
Law of tangent
Phthogorous theorem
Hero's formula
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