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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
A sequence is a functions whose domain is a subset of the set of
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Natural numbers
Real numbers
Whole numbers
Rational numbers
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Question # 2
The interval in which f(x)=x3-6x2+9x is increasing
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1<x<3
x<1 and x>3
X ≥1 and x ≤ 3
-∞ < x < ∞
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Question # 3
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quadratic function
constant function
trigonometric function
linear function
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Question # 4
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Question # 5
cos(3π/2 +θ) = _____;
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sinθ
cosθ
-sinθ
-cosθ
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Question # 6
0.25 is ______
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An irrational number
A natural number
A prime number
A rational number
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Question # 7
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Question # 8
How many necklaces can be made from 6 beads of different colours?
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120
60
24
15
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Question # 9
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R/[0,4]
R/(0,4)
(0,4)
[0,4]
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Question # 10
General solution of 1 + cos x = 0 is
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Question # 11
A square matrix A = [aij] is lower triangular matrix when:
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aij = 0 for all i < j
bij = 0
cij = 0
dij =0
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Question # 12
How many arrangements of the letter of the word PAKPATTAN can be made
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Question # 13
If the sum of co-efficient in the expansion of (a+b)
n
is 4096, then the greatest co-efficient in the expansion is
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1594
792
924
2924
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Question # 14
If A is singular then |A| = ______
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1
0
2
None of these
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Question # 15
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1
-1
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Question # 16
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Question # 17
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Question # 18
The domain of the principle sine function is
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Question # 19
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π / 3
π / 4
π / 2
π
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Question # 20
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Free vector
Null vector
Unit vector
None of these
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Question # 21
If there are m rows and n columns in a matrix then its order is
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m x n
m x m
n x n
n x m
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Question # 22
If f (x) = |x|, then (0,0) is the
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Critical point
Inflection point
Stationary point
None of these
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Question # 23
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n
C
r
n+1
C
r+1
n
C
r+1
None
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Question # 24
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0
-1
1
not defined
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Question # 25
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(2x+a+b+c)
(a+b+c)
(a+b+c+x)
0
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Question # 26
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Question # 27
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I3
rI3
r
none
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Question # 28
Which of the following represents a vector
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(x, y)
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Question # 29
How many types of an equation
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1
3
2
None
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Question # 30
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15
15 i
-15 i
-15
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Question # 31
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