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ECAT Mathematics Online Test MCQs With Answers
Question # 1
Choose an answer
A = x, B = 1
A = 0, B = 2
A = -1, B = 1
A = x-1, B = x + 1
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Question # 2
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Question # 3
Multiplicative inverse of 0 is
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0
1
+-1
Does not exist
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Question # 4
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Question # 5
cos 315° = ______
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Question # 6
24 can be written as a product of
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Odd factors
Even factors
Whole factors
Prime factors
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Question # 7
A function from X to Y is written as
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f : X to Y
f : Y to Y
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Question # 8
If x
2
+ px + 1 is a factor of ax
3
+ bx +c, then
Choose an answer
a
2
+ c
2
= -ab
a
2
- c
2
= -ab
a
2
- c
2
= ab
None of these
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Question # 9
Roots of the equation x
2
+ 7x + 12 = 0 are
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{3, -4}
{-3, 4}
{3, 4}
{-3, -4}
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Question # 10
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1
2
3
4
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Question # 11
Point (2,0) lies on trigonometric function f(x)=______;
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sinx
cosx
tanx
secx
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Question # 12
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Square matrix
Row matrix
Symmetric matrix
Null matrix
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Question # 13
Such fraction which can not be written in the form ofp⁄q where p,q and q≠ 0,such fractions are called.
Choose an answer
Fractinal numbers
Rational Numbers
Even Numbers
Whole Numbers
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Question # 14
How many terms of the A.P 3,6,9,12,15...........must be taken to make the sum 108
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8
6
7
36
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Question # 15
What is the period of 5 cot x=?
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π
-π
π/2
2π
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Question # 16
The number of permutation that can be formed from the letters of the word OBJECT is
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700
600
720
620
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Question # 17
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A
B
U
None of these
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Question # 18
P∉ A means
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P
is subset of A
P
is an element of A
P does not belongs to A
A does not element of
P
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Question # 19
Write the first four terms of the arithmetic sequence 5, 2, -1, ... is
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3
-4
7
1
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Question # 20
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Question # 21
The nth term of an A.P is (3n+5) Its 75th term is
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26
7
21
Cannot be determined
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Question # 22
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Question # 23
The set {-1, 1} is
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Group under the multiplication
Group under addition
Does not form a group
Contains no identity element
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Question # 24
If x - 2 is a factor of ax2- 12x + a = 2a, then a = ______
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-5
5
0
1
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Question # 25
(a, b) + (-a, -b) =
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(0,0)
(a, b)
(-a, -b)
(1, 1)
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Question # 26
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One-one but not onto
One-one and onto
Onto but not one-one
Neither one-one nor onto
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Question # 27
The eccentricity of ellipse becomes zero, then it takes the form of:
Choose an answer
a parabols
a straight line
a circle
None of these
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Question # 28
If a variable y dependents on a variable x in such a way that each value of x determines exactly one value of y, then we say that
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x is function of y
y is a function of x
y is independent variable
x is real valued function
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Question # 29
Number of conics is
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1
3
2
4
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Question # 30
What is the conjugate of -6 -i
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-6 +i
6 + i
-6 -i
6 -i
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Question # 31
√23 is
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A rational number
A irrational number
An even integer
A factor of 36
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