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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
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Associate law of addition
Commutative law of addition
Additive identity
Closure law of addition
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Question # 3
The probability to get an odd number in a dice thrown once is
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1/2
1/6
1/3
2
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Question # 4
Every irrational number is
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A real number
A prime number
A natural number
An integer
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Question # 5
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1
-1
5
2
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Question # 6
sin(π+θ)=_______;
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sinθ
cosθ
-sinθ
-cosθ
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Question # 7
If n is a positive integer then n! is
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(n - 1) (n - 2) .....3,.2.1
n(n - 1) (n - 2) ...3.2.1
n(n - 1 ) ( n -2) ... 3
None of these
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Question # 8
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none of these
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Question # 9
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-a -b -c
1
0
-1
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Question # 10
The last term of (1+2x)-2
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(-1)-2 (2x)-2
(-1)-4(-2x)-2
(-1)-3(2x)-3
Does not exist
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Question # 11
The solution set of the equation |3x + 2| = 5 is
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Question # 12
The line through the focus and perpendicular to the directrix is called ______ of the parabola
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axis
focal chord
tangent
latus rectum
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Question # 13
cos (
α
+
β
) + cos (
α
-
β
) =
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4 cos
α
cos
β
2 cos
α
cos
β
2 sin
α
sin
β
2 sin
α
cos
β
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Question # 14
The sum of even coefficient in the binomial expansion is
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2
n+1
2
n
2
n-1
2n
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Question # 15
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Question # 16
The point (1,3) is one solution of
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3x + 5y > 29
3x + 5y < 7
x + 2y < 4
x + 4y > 3
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Question # 17
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Question # 18
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Question # 19
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8
1/56
56
None of these
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Question # 20
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Question # 21
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a sin(ax + b) + c
- a sin(ax + b) + c
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Question # 22
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none of these
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Question # 23
The sum of co-efficient in (1+x-3x
2
)
4163
is
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0
1
-1
None
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Question # 24
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xa
x-1
a
x
x in a
a
x
In a
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Question # 25
The solution set of sin x + cos x = 0 is
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Question # 26
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0
1
-1
None of these
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Question # 27
The slope of the tangent at the point (h,h) of the circle x2 +y2 =a2 is
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0
1
-1
h
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Question # 28
The fixed point from which all the points of a circle are equidistant is called the
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chord of the circle
centre of the circle
diameter of the circle
radius of the circle
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Question # 29
An equation in which at least one term contains dy/dx, d
2
y /dx
2
etc, is called.
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Differential equation
Initial condition
General solution
Singular equation
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Question # 30
If a2 = b2 then
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a = b
a+b= 1
|a+b| =0
None
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Question # 31
Area bounded between the curve xy=2 and the lines x=1 and x=2
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ln2 square units
ln√2 square units
ln4 square units
Square units
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