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Online Tests
Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
tan(2π+θ) = ________;
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tanθ
-tanθ
cotθ
-cotθ
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Question # 2
The set X is
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Proper Subset of X
Not A subset of X
Improper Subset of X
None of these
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Question # 3
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-8
8
8i
32
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Question # 4
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Question # 5
The number of arbitrary constants in the general solution of a differential equation is equal to the different equation
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Order
Degree
Variables
All are correct
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Question # 6
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all are correct
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Question # 7
Range of cos x is ______
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[-1, 1]
R
Negative real numbers
R - { x | - 1 < x < 1}
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Question # 8
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0
U
u/2
log u
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Question # 9
The number of combinations of 10 different objects taken 8 objects at a time is
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90
45
55
50
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Question # 10
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Question # 11
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Question # 12
The eccentricity of ellipse becomes zero, then it takes the form of:
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a parabols
a straight line
a circle
None of these
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Question # 13
cos h
2
x + sin h
2
x
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an even function
an odd function
an even and implicit function
neither even nor a odd
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Question # 14
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Question # 15
We also the system of non-homogeneous linear equations by
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a and b
b and c
c and a
a, b and c
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Question # 16
A polynomial of arbitrary degree
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f(x) = o
f(x) = x
f(x) = a
f(x) = ax + b,a ≠ 0
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Question # 17
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a cosec(ax + b) + c
- a cosec(ax + b) + c
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Question # 18
The order axioms are satisfied by set of
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C
C and R
R
None of these
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Question # 19
The multiplicative inverse of -1 in the set {1-,1} is
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1
-1
±1
0
Does not exist
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Question # 20
In a triangle if a > 45°,β > 30° then y cannot be
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90°
100°
10°
120°
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Question # 21
∫ x cos dx is equal to :
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x cos x + sin x
cos x + x sin x
x cos x + x sin x
x sin x + cos x
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Question # 22
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Question # 23
n
2
- 1 divisible by 8 when n is
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an odd integer
an even integer
Irrational
Prime Number
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Question # 24
The distance between the points A(3,1) and B(-2,-4) is
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5
25
10
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Question # 25
∫x sin xdx is equal to:
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sin x/x + cos x
sin x - cos x/x
x cos x + sin x
- x cos x + sin x
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Question # 26
Zero is
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An irrational number
A rational number
A negative integer
A positive number
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Question # 27
The fifth term of an A.P. Whose first term is 5 and common difference is 3,is
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20
17
25
30
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Question # 28
The product of complex numbers (a,b) and (c,d) is
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(ac, bd)
(ac-bd, ad+bc)
(ab,cd)
(ac+bd,ad-bc)
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Question # 29
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1
-1
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Question # 30
If Z = (1,2), then Z
-1
= ?
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(0.2, 0.4)
(-0.2, 0.4)
(0.2, -0.4)
(-0.2, -0.4)
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Question # 31
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