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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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2
4
8
16
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Question # 2
If a
x
= b
y
= c
z
and a, b, c are in G.P. then x, y, z are in
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A.P.
G.P.
H.P.
None of these
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Question # 3
w
29
= ______
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0
1
w
w
2
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Question # 4
The roots of (x - a)(x - b) = ab x2 are always
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Real
Depends upon a
Depends upon b
Depends upon a and b
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Question # 5
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360°
180°
90°
None of these
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Question # 6
The process of finding a function whose derivative is given is called a
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Differentiation
Integration
Differential
None
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Question # 7
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Question # 8
The range of y = sin x is ______
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[1, -1]
[-1, 1]
[0, -1]
[-
∞
+
∞
]
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Question # 9
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A
2
- 5A + 7I = 1
2A
2
- 3A + 7I = 0
A
2
- 5A + I = 0
A
2
- 5A + 7I = 0
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Question # 10
1 + 2 + 3 + ...... + n = ______
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Question # 11
If the radius of a circle is increased by 1 then area of circle will be
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π r2
π(r+1)2
π r2 +1
2π (r+1)
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Question # 12
i =
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Question # 13
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Question # 14
Domain of cos x is ______
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Question # 15
f(x) = x
3
is:
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an odd function
an even function
an implicit function
a quadratic funtion
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Question # 16
Which one represents a sequence
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an
Sn
a(n)
{an}
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Question # 17
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Question # 18
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π
2π
π/2
None of these
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Question # 19
If a > 0,b > 0, c > 0 then the roots of the equation ax2+ bx + c =0 are
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Real and negative
Non-real with negative real parts
Real and positive
Nothing can be said
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Question # 20
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Question # 21
If f(x) = x
3
- 2x
2
+ 4x -1, then f(-2) = ?
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0
-25
5
45
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Question # 22
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Question # 23
The sum of first n even number is
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n2
n(n+1)
n+1
n+2
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Question # 24
√2 is a number
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Rational
Irrational
Even
Odd
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Question # 25
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Question # 26
The center of the sphore which passes thro' (a, 0, 0), (0, b, 0), (0, 0, c) and (0, 0, 0) is
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Question # 27
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Question # 28
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Question # 29
-2, 1, 4, 7,.... is ______
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Harmonic sequence
Arithmetic sequence
Geometric sequence
Arithmetic series
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Question # 30
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Linear equation
Quadratic equation
Cubic equation
None of these
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Question # 31
The order of the matrix A is 3 x 2 and that of B is 2 x 3. The order of the matrix BA is
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3 x 3
3 x 2
2 x 5
5 x 2
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