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ECAT Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
The corner point of the boundary lines, x-2y
2x + y = 2 is:
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(2,6)
(6,2)
(-2,2)
(2,-2)
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Question # 3
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Question # 4
The equation of motion of a stone thrown vertically up wards is s = ut - 4.9t
2
the maximum height attained by it =
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Question # 5
Some of two real numbers is also a real number , this property is called:
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Commutative property w.r.t addition
Closure property w.r.t. addition
Associative property w.r.t. addition
Distributive property w.r.t addition
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Question # 6
The value of x, and y, when (x + iy)
2
= 5 + 4i
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X = 2, y = -1
X = -2, y=1
X = 2, y = -1
X = 2, y = 2
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Question # 7
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Question # 8
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Question # 9
2π is the period of
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sin𝜽
tan𝜽
cot𝜽
all circular function
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Question # 10
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Question # 11
For all points (x,y) in fourth quadrant
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x > 0 , y < 0
x > 0 , y > 0
x < 0 , y < 0
x < 0 , y > 0
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Question # 12
If A∩B=B, then n(A∩B) is equal to
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n(a)
n(a)+n(c)
n(c)
None of these
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Question # 13
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none of these
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Question # 14
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 # 15
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x
39
40x
39
40x
41
none of these
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Question # 16
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Question # 17
If 2x +y + λ =0 is normal to parabola y2 =-8x,λ= _____
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12
8
24
-24
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Question # 18
In R, the multiplicative inverse of a is
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0
1
-a
1/a
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Question # 19
y=-a is the equation of the directrix of
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y2 =4ax
x2=-4ay
x2=4ay
y2=-4ax
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Question # 20
The sum if 1,3,5,7,9........ up to 20 terms is
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400
472
563
264
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Question # 21
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Question # 22
For a square matrix A, if A = A
t
, then A is called
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matrix
Transpose
Symmetric
Non-symmetric
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Question # 23
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Question # 24
For trival solution |A| is
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A
|A| is non zero
A = 0
None of these
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Question # 25
If A is a skew-symmetric matrix of order n and P, any square matrix of order n.prove that P' AP is
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Skew-symmetric
Symmetric
Null
Diagonal
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Question # 26
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Question # 27
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Question # 28
p(x) = 2x
4
- 3x
3
+ 2x - 1 is polynomial of degree
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1
2
3
4
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Question # 29
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 # 30
A sequence is a function whose domain is
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N
Subset of N
R
None of these
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Question # 31
Arithmetic mean between a and b is
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