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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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The law of sines
The law of consines
The law of tangents
None of these
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Question # 2
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4
3
2
1
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Question # 3
The transpose of a zero matrix is a ______
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Column matrix
Zero matrix
Row matrix
Scalar matrix
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Question # 4
30° = ______
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Question # 5
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1
-i
i
0
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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
tan270° =__________;
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0
1
-1
Undefined
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Question # 9
The longer side of a parallelogram is 10 cm and the shorter is 6 cm. If the longer diagonal makes an angles 30° with the longer side, the length of the longer diagonal is
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Question # 10
If the distance of any point on the curve from any of the two lines approaches zero then it is called
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Axis
Directrices
Asymptotes
None
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Question # 11
If a
1
, r are first term and the common ratio respectively then the sum of an infinite geometric series is
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Question # 12
What is the period of 6 sin x=?
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π
-π
π/2
2π
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Question # 13
A triangle has ____ elements
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3
4
5
6
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Question # 14
The central angle of an arc of a circle whose length is equal to the radius of the circle is called one
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Degree
Second
Minute
Radian
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Question # 15
If the elevation of the sun is 30°, then the length of the shadow cast by a tower of 150 ft height is
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Question # 16
Any whole number can be written as a product of factors which are
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Even number
Odd numbers
Prime number
Rational number
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Question # 17
If a > 0,b > 0, c > 0 then the roots of the equation ax2+ bx + c =0 are
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Real and negative
Non-real with negative real parts
Real and positive
Nothing can be said
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Question # 18
What is the circular measure of the angles between the hands of which at 4 o clock
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π/6
3π/2
π/4
2π/3
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Question # 19
The product of the four fourth roots of unity is
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0
1
-1
None of these
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Question # 20
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Question # 21
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Reciprocal equation
Exponential equation
Radical equation
None of these
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Question # 22
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Question # 23
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A rational number
A natural number
An irrational number
An integer
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Question # 24
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Question # 25
The general solution of the differential equation x dy / dx = 1 + y is:
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2
1
3
None
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Question # 26
2.333....is a
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Irrational no
Complex no
Rational no
None of these
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Question # 27
The probability to get an odd number in a dice thrown once is
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6
1
1/6
1/2
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Question # 28
The solution set of the equation |3x + 2| = 5 is
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Question # 29
If |a x b|2 + (a,b)2 = _____
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|a|2 + |b|2
|a|2- |b|2
|a|2|b|2
None
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Question # 30
If #n = (n-5)
2
+ 5, then find #3 x #4.
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54
12
4
9
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Question # 31
In one hour, the minute hand of a clock turns through
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