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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
The mid point of the line segment joining the points (a,b) and (b,a) is
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Question # 2
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Question # 3
Decimal part of irrational number is
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Terminating
Repeating only
Neither repeating nor terminating
Repeating and terminating
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Question # 4
A∪(A∪B)= --------------------
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B
A
A∪B
None of these
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Question # 5
∫ x cos dx is equal to :
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x cos x + sin x
cos x + x sin x
x cos x + x sin x
x sin x + cos x
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Question # 6
Composition of functions is
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Non-commutative (fg ≠ gf)
non-associative [8(fh) ≠(8f)h]
Commutative (fg = gf)
f of-1≠ 1
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Question # 7
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Question # 8
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Closure law of addition
Associative law of addition
Commutative law of multiplication
Associative law of multiplication
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Question # 9
The sum of the focal distance from any point on the ellipse 9x2 +16y2 =144 is
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32
16
18
8
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Question # 10
cos
-1
(cos x) =
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x
cos x
x = 1/x
cos
-2
x
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Question # 11
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3
6
0
None of these
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Question # 12
If the cone is cut by a plane perpendicular to the axis of the conec, then the section is a:
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Circle
ellipse
hyperbola
parabola
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Question # 13
Every set is an improper subset of
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Empty set
Equivalent set
Itself
Singleton set
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Question # 14
{1, 2, 3, 4,.....} is set of ______
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Natural numbers
Whole numbers
Integers
Rational numbers
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Question # 15
Which of the following sets in infinite
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The set of students of your class
The set of all schools in Pakistan
The set of natural numbers between 3 and 10
The set of rational numbers between 3 and 10
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Question # 16
If the domain of the function f: x⟶ 2x
3
+ 1 is {-1,2,3}, the range of the function is
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{3,2,5}
{1,3,9}
{-1,-2,-3}
{3,9,19}
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Question # 17
Which of the following ordered pair is a solution of the inequality x+2y<6?
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(2,3)
(2,2)
(6,0)
(1,1)
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Question # 18
A triangle has six
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side
elements
angle
tangents
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Question # 19
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a
x
a
x
In a
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Question # 20
By expressing sin 125° in terms of trigonometrical ratios, answer will be
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sin 65° = 0.9128
sin 55° = 0.8192
sin 70° = 0.5384
sin 72° = 0.1982
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Question # 21
The number of proper subset of A ={a.b.c.d} is
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3
6
8
15
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Question # 22
The parabolay2=4ax open up if
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a<0
a≠0
a>0
All are incorrect
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Question # 23
If the matrices A and B have the order 1 x 10 and 10 x 1 then order of AB is
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1 x 1
1 x 10
10 x 10
10 x 1
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Question # 24
Period of Sine and Cosine function is
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π
2
π
-
π
-2
π
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Question # 25
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Less then 1
Equal to 1
Greater than 1 but less then 2
Greater then or equal to 2
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Question # 26
Graph of the question x
2
+ y
2
= 4 is
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A circle
An ellipse
A parabola
A square
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Question # 27
In triangle ABC, in which b=95, c=34, a =52
𝜊
then the value of a=
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18 cm
18.027 cm
20.7 cm
19 cm
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Question # 28
cos (
α
-
β
) = cos
α
cos
β
+ sin
α
sin
β
is true for all
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α
>
β
> 0
α
>
β
β
>
α
None of these
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Question # 29
If A is an event then which of the following is true
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P(A)<0
0≥P(A)≤1
P(A)>0
None
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Question # 30
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At
-A
A
A-1
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Question # 31
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