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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
The sum of coefficients in the binomial expansion equals to
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2
2
n+1
2
n-1
2
n
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Question # 2
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1
0
3
-1
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Question # 3
5th term of a G.P. is 2, then the product of first 9 terms is
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256
128
512
None of these
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Question # 4
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0
1
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Question # 5
The end points of the major axis of the ellipse are called its
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Foci
Vertices
Co - vertices
None of these
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Question # 6
If uv= Projuv then
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Uandvare parallel
vis a unit vector
Uis a unit vector
Both b and c
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Question # 7
graph of sine function is bounded between lines
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y± 1 = 0
x± 1 = 0
x± y - 0
None of these
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Question # 8
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none of these
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Question # 9
What is the value of cos (cos-1 2) ?
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√2
1/2
undefine
0
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Question # 10
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Question # 11
If f(x) = x + 1 then f(z
2
-1) is
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z
2
z
2
+ 2
z
2
- 2
none of these
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Question # 12
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Associative law of addition
Commutative law of addition
Additive identity
Closure law of addition
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Question # 13
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Question # 14
w
29
= ______
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0
1
w
w
2
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Question # 15
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Question # 16
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5
15
10
20
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Question # 17
if A = (x/x€ Q˄ 0 < x < 1}, the A is
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Infinite set
Finite set
Set of rational numbers
Set of real numbers
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Question # 18
The parametric equation of a curve are x = t
2
, y = t
3
then
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Question # 19
General solution of tan 5
θ
= cot 2
θ
is
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Question # 20
If f(x) = tan x then f(0) is
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0
1
1/2
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Question # 21
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Question # 22
If one end of the diameter of the circle x
2
+ y
2
- 5x = 3y -22 = 0 is (3,4) the other end is:
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(2,7)
(-2,-7)
(-2,7)
(2,-7)
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Question # 23
Every real number is
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a positive integer
a rational number
a negative integer
a complex number
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Question # 24
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Question # 25
(a +b
i
) -c (c +d
i
) =
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(a +b) = (c +d)
(a +c) + i(b +d)
(a -c) + (c -d)
i
(a -c) +(b -d)
i
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Question # 26
The points A(+1,-1),B(3,0),C(3,7),D(1,8) are vertices of
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Square
Parallelogram
Rectangle
Trapezium
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Question # 27
Range of cos x is ______
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[-1, 1]
R
Negative real numbers
R - { x | - 1 < x < 1}
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Question # 28
The range of the principle cos function is
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Question # 29
If x - 1 is a factor of x4 - 5x2 + 4 then other factor is
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(x + 2)2(x - 1)
(x + 2)(x - 1)2
(x+2)(x2- x- 2)
(x + 2)2(x - 1)2
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Question # 30
If k2x2 +2hxy- 4y2 =0 represents two perpendicular lines then
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k = 2
k = ±2
k = -2
k ≠0
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Question # 31
The seventh term of (x3+1/x)8is
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71
-22
27
28
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