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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
Cos-1 (-x) =
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-x
1/x
tan-1 x
π-cos-1 x
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Question # 2
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n!
0!
1
None of these
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Question # 3
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Question # 4
The line through the intersection of the lines x+ 2y+ 3= 0 : 3x +4y +7 =0 and making equal intercepts on the axes is
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x+ y+ 1= 0
x+ y- 2= 0
x+ y+ 2= 0
2x +y +2 =0
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Question # 5
The condition for ax2 + bx c to be expressed as the product of linear polynomials is
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b4 - 4ac =0
b4- 4ac ≥0
b4- 4ac <0
b4= 4ac
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Question # 6
A statement which is either true or false is called
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Induction
Deduction
Propositicon
Logic
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Question # 7
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Question # 8
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x
39
40x
39
40x
41
none of these
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Question # 9
The points (5, -4, 2),(4, -3, 1),(7, -6, 4),(8, -7, 5) are vertices of a
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Square
Parallelogram
Rectangle
Rhombus
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Question # 10
The sets {1, 2, 4} and {4, 6, 8, 10} are
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Equal sets
Equivalent sets
Disjoint sets
Over lapping sets
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Question # 11
If n is any positive integer then n! > 2
n-1
for
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Question # 12
The 6th term of the sequence 7,9,12,16......is
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27
32
20
19
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Question # 13
Period of cos x is _____
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Question # 14
Cos
-1
12/13 =
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tan
-1
3/5
cot
-1
13/12
Sec
-1
13/12
sin
-1
5/13
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Question # 15
The value of sin 28°cos 17°+cos 28°sin 17°is
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Question # 16
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x
2
+ 2x + c
(x
2
+ 2x -1)
4
+ c
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Question # 17
1 degree = _______
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0.00175 rad
0.175 rad
0.0175 rad
1.75 rad
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Question # 18
The number of real tangents that can be drawn to the ellipse 3x
2
+ 5y
2
= 32 passing thro. (3, 5) is
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0
1
2
Infinite
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Question # 19
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Question # 20
The set of all positive even integers is
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Not a group
A group w.r.t. subtraction
A group w.r.t. division
A group w.r.t. multiplication
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Question # 21
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Reciprocal equation
Exponential equation
Radical equation
None of these
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Question # 22
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a
x
In a + c
a
x
+ c
x a
x
+ c
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Question # 23
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0
-1
1
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Question # 24
Under multiplication, solution set of is
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Groupoid
Abelian group
Semi group
All of these
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Question # 25
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Question # 26
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Question # 27
The domain of an infinite sequence is a
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Set of natural numbers
R
Subset of N
None of the above
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Question # 28
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Question # 29
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0
1
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Question # 30
If 0 = R, thenthe additive inverse of a is
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1/9
1/-9
a
-a
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Question # 31
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(x
3
- 3x
2
)
8
+ c
3x
2
- 6x + c
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