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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
xy= 2 is:
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a constant function
an identity function
an improper function
implicit function
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Question # 2
For each even natural number n (n
2
-1) is divisible by
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6
3
4
8
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Question # 3
The matrix A is Hermitian when (A)' =
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A
-A
A
A'
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Question # 4
Cos-1 (-x) =
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-x
1/x
tan-1 x
π-cos-1 x
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Question # 5
The equation of the tangent at vertex to the parabola is y2 = -8(x -3)
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y=0
x=3
x=1
x=5
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Question # 6
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4
3
2
1
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Question # 7
When the angle between the ground and the sun is 30
𝜊
,flag pole costss a shadow of 40 mg long. the height of the top of the flag is
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25m
23m
12m
29m
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Question # 8
2x
3
+ 3x + 9 is a ______
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Polynomial of degree 3
Quadratic equation
Cubic equation
Polynomial of degree 2
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Question # 9
The square matrix A is skew Hermitian when (A)'=
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A
A'
-A
A
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Question # 10
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Question # 11
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Question # 12
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tan 3x + c
cot 3x + c
- cot 3x + c
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Question # 13
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Question # 14
The distance of the point (-2, -3) from the origin is
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2
-5
-3
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Question # 15
There are two middle terms in the expansion of (a+x)n if n is
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Even +ve integer
+ve integer
Odd +ve integer
All
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Question # 16
The period of 3 sin x is
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2π
9π
3π
5π
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Question # 17
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3 sec
2
x
3 sec
2
3x
sec
2
3x
sec
2
x
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Question # 18
(x +a)(x +b)(x +c)(x +) = k, k≠0 is reducible to quadratic form only if
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a+b=c+d
a+c=b+d
a+d=b+c
All are correct
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Question # 19
Domain of tangent function is
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Question # 20
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Question # 21
What is the 26th term of the sequence, if its general term is a
n = (-1)
n+1
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2
26
27
1
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Question # 22
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none of these
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Question # 23
If 0 = {1,3,5.......}, then n (0) =
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99
odd integers
Even numbers
Infinite
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Question # 24
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1
2
3
None of these
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Question # 25
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Question # 26
The coordinates of the point that divides the join of A(-6,3) and B(5, -2) in the ratio 2:3 internally
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Question # 27
A square is inscribed in the circle x
2
+ y
2
- 2x + 4y + 3 =0. Its sides are parallel to the co-ordinate axes. Then one vertex of the square is
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Question # 28
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4(x
3
- 3x
2
)
3
+ c
3x
2
- 6x + c
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Question # 29
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Question # 30
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Principle of equality of fractions
Rule for product of fraction
Rule for quotient of fraction
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Question # 31
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