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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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A
-
A
t
-A
A
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Question # 2
In-radius is denoted by
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r
η
r2
R
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Question # 3
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1
-1
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Question # 4
The principal value of sin-1√(3/2) is
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-π/3
π/3
2π/3
π/2
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Question # 5
Number of conics is
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1
3
2
4
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Question # 6
The multiplicative inverse of x such that x = 0 is
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-x
Does not exist
1/x
±1
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Question # 7
The exact value of cos
-1
(-1) + cos
-1
(1) =
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π
-π
π/2
π/3
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Question # 8
The square roots of negative numbers is called
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Real no
Complex no
Positive no
Negative no
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Question # 9
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a = a
a < a
a > a
a
2
= a
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Question # 10
If
α
,
β
are the roots of ax
2
+ bx + c = 0 and
α
+ h,
β
+ h are the roots of px
2
+ qx + r=0, then h =
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Question # 11
Write the first four terms of the sequence if a
n
= (-1)
n
n
2
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-1, 4, -9, 16
1, -4, 9, 16
1, 4, 9, 16
None of these
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Question # 12
System of linear equations is inconsistent if
Choose an answer
System has no solution
System has one solution
System has two solution
None of above
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Question # 13
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Question # 14
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 # 15
There are ______ types of rational fraction
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Three
Four
Five
Two
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Question # 16
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-sin
θ
cos
θ
sin
θ
-cos
θ
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Question # 17
Any recurring decimal represents a
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Irrational no
Integer
Rational no
None of these
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Question # 18
nCn-r is equal to
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n!
n-1Cr
nCr
None of these
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Question # 19
The differential equation of all st. lines which are at a constant distance to form the origin is
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Question # 20
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Question # 21
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Addition
Multiplication
Division
Both addition and multiplication
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Question # 22
If a > b or a < b than a = b is a
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Additive property
Transitive property
Trichotomy property of inequality
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Question # 23
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Question # 24
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Question # 25
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Question # 26
Geometric mean between a and b is
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Question # 27
Every term of a G.P. is positive and also every term is the sum of two preceding terms. Then the common ratio of the G.P. is
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Question # 28
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Question # 29
Area of inscribed circle is
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π R2
π η2
π r22
π r2
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Question # 30
x = _________ is in the solution of 2x + 3 < 0
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0
2
-1
-2
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Question # 31
If the sum of two unit vectors is a unit vector the the magnitude of their difference is
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√2
√3
1
None of these
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