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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
Arithmetic mean between a and b is
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Question # 3
Which of the following is factor of x11+a11, where n is an odd integer
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x-a
x+a
2x-a
2x+a
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Question # 4
What is the period of tan 4/3 x =?
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π/4
4π/3
7π/4
3π/4
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Question # 5
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Question # 6
In the function f: A⟶B, the elements of a are called
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Images
Pre-images
ranges
Parameters
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Question # 7
Range of cosec
θ
is
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W - {y | -1 < y < 1}
R - {y | -1 < y < 1}
O - {y | -1 < y < 1}
R
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Question # 8
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none of these
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Question # 9
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0
1
13
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Question # 10
If A(x
1
, y
1
) , B(x
2
, y
2
) and C(x
3
, y
3
) are the vertices of a triangle then its centroid is
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Question # 11
If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:
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[1,1,1.5]
[2,2,1.5]
[1.5,1.5,4]
None of these
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Question # 12
Multiplying each side of an inequality by (-1) will:
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Not effect
Change the sign
Become zero
Not defined
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Question # 13
What is the period of cos 6x =?
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π/2
π/3
π/4
π
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Question # 14
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Question # 15
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Question # 16
The periods of the function f(x) = x[x] is
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1
2
Non periodic
None of these
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Question # 17
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Question # 18
The angle of elevation of a tower from a point A due south of it is x and from a point B due east of A is y. If AB = 1, then the height h of the tower is given by
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Question # 19
In the interval 0≤ x ≤ π, the sine is
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Not a function
Not defined
Infinity
Not one-to-one function
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Question # 20
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Question # 21
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0
1
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Question # 22
The set {Z\{0}} is group w.r.t
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Addition
Multiplication
Division
Subtraction
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Question # 23
The set of rational number is represented by
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W
R
Q'
Q
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Question # 24
If all members of a sequence are real numbers then it is called
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A.P
Real Sequence
G.P
None of these
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Question # 25
x
2
+ x - 6 = 0 is
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An equation
An identity
A polynomial
None of these
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Question # 26
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Question # 27
Product of any n consecutive positive integers is divisible by
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n
√n
n!
None
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Question # 28
The lines l1and l2intersect. The shortest distance between them is
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Positive
Negative
Zero
Infinity
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Question # 29
The set {Z\ {0} } is group w.r.t
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Addition
Multiplication
Division
Subtraction
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Question # 30
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A
A'
U
U'
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Question # 31
Cos (cos4π/3)=
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π/2
π/3
2π/3
-π/3
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