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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
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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 # 2
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-3
-7
1
0
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Question # 3
The first three terms in the expansion of (1 + x)
3
are
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1 + 3x +6x
2
1- 3x + 6x
2
\
-3 -3x -6x
2
1- 3x -6x
2
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Question # 4
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cos 2x + c
- cos 2x + c
tan 2x + c
cot 2x + c
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Question # 5
The domain of f(x) = log x is
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[0,
∞
]
(0,
∞
)
[0,
∞
[
[
∞
,
∞
]
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Question # 6
The square matrix A is skew-symmetric when At =
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-B
-C
-A
-D
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Question # 7
If the exponent in the binomial expansion is 6, then the middle term is
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2nd term
3rd term
4th term
5th term
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Question # 8
In R the left cancellation property w.r.t addition is
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Question # 9
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Question # 10
The point ________ is in the solution of the inequality 2x - 3y > 5
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(1, -1)
(2,2)
(0,0)
(3,0)
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Question # 11
The points (5, 2, 4)(6, -1, 2) and (8, -7, k) are collinear if k is equal to
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-2
2
3
-1
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Question # 12
For three consecutive terms in A.P middle term is called
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A.M
nth term
Central term
None of these
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Question # 13
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30°
45°
60°
90°
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Question # 14
The symbol of irrational is
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W
N
Q
Q'
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Question # 15
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3 x 2
2 x 3
3 x 3
2 x 2
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Question # 16
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Question # 17
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Question # 18
i
3
=
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-1
i
-i
1
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Question # 19
I f the focus is F ( 0,-a) and directrix is the line v=a, then equation of the parabola is:
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x
2
= 4ay
y
2
= 4ax
y
2
= -4ax
x
2
= 4ax
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Question # 20
In quadratic equation y=ax
3
+bx+c, if b and c are both zero then the graph is
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Symmetric w.r.t.y-axis
Symmetric w.r.t.x-axis
Straight Line
Circle
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Question # 21
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Question # 22
Through how many radians does the hour hand of a clock turn in one hour
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Question # 23
Period of sin x is
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Question # 24
A line joining two distinct points on a parabola is called
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Axis
Directrix
Chord
Tangent
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Question # 25
The law of sines can be used to solve oblique triangle when following information is given:
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Two angles and a side
Two sides and an angle opposite one of the given sides
Two sides and the angle between two sided
Option a and b
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Question # 26
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Question # 27
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Question # 28
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Question # 29
If n is any positive integer then n! > 2
n-1
for
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Question # 30
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Question # 31
The multiplicative inverse of -3i is
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3i
-3i
-1/3i
1/3 i
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