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ECAT Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
In R the number of identity elements w.r.t.'.' is
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One
Two
Three
Four
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Question # 3
Additive inverse of -a -b is
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a
-a + b
a - b
a + b
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Question # 4
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0
1
2
4
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Question # 5
The equation of the circle with centre origin and radius r is
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x
2
+ y
2
= 1
x
2
+ y
2
= r
2
x
2
+ y
2
= 0
x
2
- y
2
= r
2
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Question # 6
p, q, r and s are integers. If the A.M. of the roots of x2- px + q2= 0 and G.M. of the roots of x2- rx + s2= 0 are equal, then
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q is an odd integer
r is an even integer
p is an even integer
s is an odd integer
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Question # 7
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 # 8
Period of 3 sin x is ______
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Question # 9
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Question # 10
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Question # 11
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5
-5
none
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Question # 12
The set of whole numbers is subset of
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The set on integers
The set of natural numbers
{1, 3, 5, 7, ....}
The set of prime numbers
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Question # 13
The second degree equation 2x2 -xy+ 5x -2y +2 =0 represents
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Circle
Hyperbola
Ellipse
Pair of straight lines
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Question # 14
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Question # 15
If f(x) = tan x then f(0) is
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0
1
1/2
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Question # 16
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Question # 17
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Question # 18
The area of the circle centred at (1,2) and passing through (4,6) is
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30 πsq.units
5π sq.units
15π sq.units
25π sq.units
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Question # 19
The number of subsets of B = {1,2,3,4,5}
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10
32
16
5
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Question # 20
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Question # 21
Range of cosec x is ______
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{-1, 1}
R
Negative real numbers
R - { x | - 1 < x < 1}
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Question # 22
Matrices A = [aij] 2 x 3 and B =[bij] 3 x 2 are suitable for
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BA
A
2
AB
B
2
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Question # 23
The area between the x-axis and the curve y = x
2
+ 1 from x = 1 to 2 is:
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15/6
15/4
10/4
10/3
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Question # 24
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Question # 25
O is ______
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A positive integer
A negative integer
A natural number
An integer
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Question # 26
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sin h x
cos h x
sec h x
cosec h x
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Question # 27
The point where the axis meets the parabola is called
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Directrix
Foucu
Chord
Vertix
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Question # 28
π is the ration of
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Area of a circle to its diameter
Area of a circle to its radius
Circumference of a circle to its diameter
Circumference of circle to its radius
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Question # 29
If a polynomial P(x) is divided by x + a, then the remiander is
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P(a)
P(-a)
P(0)
None of these
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Question # 30
(x + 2)
2
= x
2
+ 4x
+ 4 is
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A linear equation
A cubic equation
A quadratic equation
None
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Question # 31
The number of standard parabolic functions are is
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4
2
3
1
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