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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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π / 3
π / 4
π / 6
0
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Question # 2
Every whole number is
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A real number
An irrational number
A prime number
A negative integer
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Question # 3
Which is not included in the domain of cos
-1
x
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0
1
-1
2
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Question # 4
Which term of the A.P 5,8,11,24.............is 320
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104th
106th
105th
64th
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Question # 5
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Question # 6
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2
2
- n - 1
1 - 2
-n
n + 2
-n
-1
2
n
- 1
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Question # 7
∀a,b, c ε R,a +c = b + c = > a = b
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Reflexive property
Symmetric property
Cancellations property w.r.t. addition
Transitive property
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Question # 8
The set of ordered pairs (x,y) such that ax+ by < c, and (x,y) such that ax + by>0, are called
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Linear Inequalities
Feasible regions
Half planes
Boundary
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Question # 9
If 2x
1/3
+ 2x
-1/3
= 5, then x is equal to
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1 or -1
2 or 1/2
8 or 1/8
4 or 1/4
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Question # 10
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tan 3x + c
cot 3x + c
- cot 3x + c
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Question # 11
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Square matrix
Row matrix
Symmetric matrix
Null matrix
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Question # 12
Which one represents a sequence
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an
Sn
a(n)
{an}
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Question # 13
For every positive integers n 1+5+9+....+ (4n - 3) is
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n(2n - 1)
(2n - 1)
n - 1
n
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Question # 14
The equation (cos p - 1)x
2
+ x (cos p) + sin p = 0 in the variable x, has real roots, then p can take any value in the interval
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(0, 2
π
)
(-
π
, -0)
(0,
π
)
None of these
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Question # 15
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Singular
Non-singular
Adjoint
None of above
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Question # 16
x
3
+ 2x
2
- 3x + 5 is ______
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An equation
A polynomial
Proper rational fractions
Improper rational fractions
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Question # 17
The line y =mx +1 is tangent to the parabola y2 =4x if
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m=1
m=2
m=3
m=4
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Question # 18
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I quadrant
II quadrant
III quadrant
IV quadrant
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Question # 19
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Question # 20
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Question # 21
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Question # 22
x = secθ,y = tanθ are the parametric equations of
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Circle
Hyperbola
Ellipse
parabola
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Question # 23
A relation in which the equality is true for all values of the unknown is called ______
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An identity
An equation
A polynomial
None of these
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Question # 24
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Question # 25
Cos (cos4π/3)=
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π/2
π/3
2π/3
-π/3
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Question # 26
120°=______
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Question # 27
2x = 3 is a conditional equation it is true for
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2
3
3/2
2/3
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Question # 28
an - an-1 will be common difference in an A.P if
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n = 1∀n∈ N
n>1∧n∈N
n∈Z
None of the above
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Question # 29
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One-to-one and onto
One-to-one but not on to
Onto but not one-to-one
Neither one-to-one nor onto
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Question # 30
In R the left cancellation property w.r.t addition is
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Question # 31
The 8th term of (1+2x)
-1/2
is
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-221/16 x
7
-225/18 x
7
-407/9 x
3
-429/16 x
7
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