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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
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Question # 2
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Question # 3
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I and
I
I quadrants
I
I and
I
I
I quadrants
I
I and
I
V
quadrants
none of these
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Question # 4
If f(x)= x
3
then f(-2) is
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-2
-4
-8
8
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Question # 5
If the 4th term in the expansion of (px + x
-1
)
m
is 2.5 for all x
∈ R, then
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Question # 6
The set of real roots of the equation log
(5x + 4)
(2x +3)
3
- log
(2x + 3)
(10x
2
+ 23x + 12) = 1 is
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{-1}
{-3/5}
Empty set
{-1/3}
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Question # 7
Which one is not defined∀n∈Z+
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-n!
n!
(-n)!
n!+0!=n!+1
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Question # 8
Tangent is a periodic function and its period is ______
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2
π
3
π
π
4
π
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Question # 9
If ax
2
+ bx + x = 0 is satisfied by every value of x, then
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b = 0, c = 0
c = 0
b = 0
a = b = c = 0
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Question # 10
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2
7
8
12
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Question # 11
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3/4
r
v
None of these
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Question # 12
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Question # 13
w
29
= ______
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0
1
w
w
2
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Question # 14
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none of these
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Question # 15
The period of 3 sin x is
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2π
9π
3π
5π
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Question # 16
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Question # 17
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2 x 2
2 x 3
3 x 2
3 x 3
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Question # 18
sin(a + β)+sin(a -β) =_____;
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2cosa cosβ
2sina cosβ
2cosa sinβ
-2sina sinβ
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Question # 19
A sequence of number whose reciprocals form an arithmetic sequence is called
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Geometric sequence
Arithmetic series
Harmonic sequence
Harmonic series
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Question # 20
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Question # 21
A relation in which the equality is true for all values of the unknown is called ______
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An identity
An equation
A polynomial
None of these
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Question # 22
The function f : x→ y defined as f (x) =α∀x∈ X,α∈ y is called
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Constant function
Polynomial function
Identity function
Linear function
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Question # 23
If A⊆ B, and B is a finite set, then
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n (a) < n(B)
n(B)<(A)
n(A)≤ n (B)
n(A)≥ n(B)
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Question # 24
The equation of the plane which bisects the line joining (2, 3, 4) and (6, 7, 8) is
Choose an answer
x + y + z - 15 = 0
x - y + z - 15 = 0
x - y - z - 15 = 0
x + y + z + 15 = 0
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Question # 25
Which of the following is the definition of singleton
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The objects in a set
A set having no element
A set having no subset
None of these
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Question # 26
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Question # 27
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360°
180°
90°
None of these
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Question # 28
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Question # 29
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Question # 30
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0
1
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Question # 31
The square matrix A is skew Hermitian when (A)'=
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A
A'
-A
A
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