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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
If ax + bx + c =0 is satisfied by every value of x,then
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b = 0,c = 0
c = 0
b = 0
a = b = c = 0
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Question # 3
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cos x
sec x tan x
sec
2
x
-cosec
2
x
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Question # 4
The zero vector is
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[0, 0, 0]
[1, 1, 1]
[0, 1, 0]
[0, 0, 1]
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Question # 5
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Question # 6
Let A and B be two sets. If every element of A is also an element of B then
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Question # 7
A conjunction of two statement p and q is true only if
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p is true
q is true
Both p and q are true
both p and q are false
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Question # 8
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Question # 9
If you are looking someone on the ground from the top of a hill the angle formed is called angle of _______;
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Elevation
Depression
Right angle
None off these
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Question # 10
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Question # 11
tan (
π
-
θ
) = ______
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- sin
θ
- tan
θ
- cos
θ
- cot
θ
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Question # 12
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Question # 13
For any integer k, w
n
= ______ when n = 3k
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1
2
0
-4
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Question # 14
The sum of the squares of three distinct real numbers, which are in G.P., is S
2
. if their sum is
α
S then
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Question # 15
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Associative law of multiplication
Commutative law of addition
Commutative law of multiplication
Associative law of addition
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Question # 16
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none of these
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Question # 17
A chord passing through the centre of the circle is called
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the secant of the circle
the tangent of the circle
the arc of the circle
the diameter of the circle
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Question # 18
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Question # 19
The polynomial x - a is a factor of the polynomial f(x) if and only if
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f(a) is positive
f(a) is negative
f(a) = 0
None of these
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Question # 20
x
2
+ x - 6 = 0 is
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An equation
An identity
A polynomial
None of these
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Question # 21
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Question # 22
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Question # 23
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Question # 24
A square matrix A = [aij] is upper triangular when
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cij = 0
bij = 0
aij = 0 for all i > j
dij = 0
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Question # 25
e-radii are denoted by
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η
r2
r3
All of these
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Question # 26
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Question # 27
0 is a symbol of
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singleton set
Empty set
Equivalent set
Infinite set
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Question # 28
An equation of the form ax + by = k is homogeneous linear equation when
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b = 0, a = 0
a = 0,b ≠ 0
b = -0,a≠ 0
a≠ 0,b≠ 0, k = 0
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Question # 29
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Question # 30
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12
6
8
none of these
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Question # 31
If y=sin(ax+b) then y4=________:
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sin4(ax+b)
a4sin(ax+b)
a4cos(ax+b)
None of these
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