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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
For each natural number n, n (n+1) is
Choose an answer
an even
an odd
multiple of 3
Irrational
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Question # 2
if f(x) = x
3
-3x
2
+5x -1, then f(-√2)=
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7+7√2
3+3√2
-7-7√2
-3-3√2
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Question # 3
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Question # 4
What is the period of 6 sin x=?
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π
-π
π/2
2π
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Question # 5
2x + 3y > 4 is a linear inequality in
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one variable
two variables
three variables
none of these
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Question # 6
The inclination of a line parallel to x-axis is
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Question # 7
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Question # 8
The length of perpendicular from (3,1) to 4x +3y +20 =0 is
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6
7
3
8
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Question # 9
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9
-9
0
1
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Question # 10
What is the value of cos-1(1/2)?
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π/3
π/4
3π/2
π/6
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Question # 11
Multiplicative inverse of 0 is
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0
1
+-1
Does not exist
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Question # 12
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Reflexive property
Symmetric property
Transitive property
Additive property
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Question # 13
The sum of the focal distance from any point on the ellipse 9x2 +16y2 =144 is
Choose an answer
32
16
18
8
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Question # 14
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1
2
3
None of these
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Question # 15
The term involving x4 the expansion (3-2x)7 is
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217 x4
15120x4
313x4
-25x4
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Question # 16
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Question # 17
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Question # 18
If either A = 0 or B =0,then Ax2 +By2 +2Gx +2Fy +c =0 represents a
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Circle
Hyperbola
Ellipse
Parabola
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Question # 19
cot
θ
= sin 2
θ
if
θ
=
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Question # 20
The lotus of intersection of perpendicular tangents to the parabola y
2
= 4ax is:
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Axis of the parabola
Focal chord of the parabos
The tangent at vertex of the parabola
a directrix of the parabola
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Question # 21
Sum of two quantities is at least 20 is denoted by
Choose an answer
x +y =20
x +y≥ 20
x +y≠ 20
x +y≤20
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Question # 22
cos(a +β)-cos(a-β) = _______;
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2cosa cosβ
2sina cosβ
-25 in a cosβ
-2sin a sinβ
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Question # 23
f(x) = x is
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trigonometric function
exponential function
quadratic function
identify function
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Question # 24
Sec
-1
x =
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Cos
-1
1/x
cosec
-1
1/x
Cos
-1
(-x)
Tan
-1
x
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Question # 25
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Question # 26
In (x +iy) y is called as
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Imaginary part
Complex number
Real part
None of above
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Question # 27
Choose an answer
Commutative law of addition
Associative law of addition
Additive identity
Additive inverse
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Question # 28
y=0 of the parabola y
2
= 4ax is the
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equation of directirx
Equatio of the tangent
Equation of axis
equation of latus rectum
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Question # 29
The area under the curve y = 1/x
2
between x = 1 and x =4 is:
Choose an answer
-25
0.75
-0.35
-10
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Question # 30
Choose an answer
-1
0
1
Undefined
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Question # 31
Vector additon is:
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Commutative
Associative
Commutative and Associative
None of these
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