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ECAT Mathematics Online Test MCQs With Answers
Question # 1
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none of these
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Question # 2
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Question # 3
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A
B
U
None of these
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Question # 4
The graph of a linear function is
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a circle
triangle
a straight line
none of these
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Question # 5
Period of Cotangent function is
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π
-π
0
-2π
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Question # 6
The parabolay2=4ax open up if
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a<0
a≠0
a>0
All are incorrect
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Question # 7
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Question # 8
The order of the matrix [1 2 3] is
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1 x 1
3 x 3
3 x 1
1 x 3
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Question # 9
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none of these
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Question # 10
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Question # 11
Roots of the equation x
2
+ 5x - 1 = 0 are
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Rational
Irrational
Complex
None of these
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Question # 12
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Question # 13
For trival solution |A| is
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A
|A| = 0
A = 0
|A|≠ 0
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Question # 14
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Principle of equality of fractions
Rule for product of fractions
Golden rule for fractions
Rule for quotient of fractions
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Question # 15
The coefficient of the second term of (a+b)
4
is
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1
9
3
5
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Question # 16
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1
0
-2
3
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Question # 17
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Question # 18
The set {1, -1, i, -i}
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Form a group w.r.t addition
Form a group w.r.t multiplication
Does not form a group w.r.t multiplication
Not closed under multiplication
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Question # 19
The period of the trigonometric function y = sin x cos x is
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2π
π
4π
π / 2
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Question # 20
If a,β are the roots of ax2+bx+c=0,the equation whose roots are doubled is
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ay2 +2by+c=0
ay2+2by+4c=0
ay2+2by+c=0
ay2+by+4c=0
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Question # 21
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A,. B, C are coincident
A, B, C are collinear
Both A and B
None of these
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Question # 22
If A(x
1
, y
1
) , B(x
2
, y
2
) and C(x
3
, y
3
) are the vertices of a triangle then its centroid is
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Question # 23
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Question # 24
If x+y+z+......+2n = 2n+1-1∀n∈W,then cube root of xyz is equal to
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1
4
2
8
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Question # 25
If either A = 0 or B =0,then Ax2 +By2 +2Gx +2Fy +c =0 represents a
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Circle
Hyperbola
Ellipse
Parabola
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Question # 26
No term of a geometric sequence can be
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0
1
2
3
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Question # 27
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Question # 28
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 # 29
Number of terms in the expansion of (a+x)
n
is
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n - 1
n + 1
n + 2
n + 3
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Question # 30
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none of these
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Question # 31
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3K
K2
K3
K
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