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ECAT Mathematics Online Test MCQs With Answers
Question # 1
Choose an answer
184
none of these
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Question # 2
The range of y = cot x = ______
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-
∞
> y > +
∞
-
∞
> x > +
∞
-
∞ <
y < +
∞
None of above
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Question # 3
No term of a geometric sequence can be
Choose an answer
0
1
2
3
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Question # 4
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0
1
2
none of these
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Question # 5
The graph of a quadratic function is
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Circle
Ellipse
Parabola
Hexagon
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Question # 6
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Question # 7
The equation of the directrix of the parabola x
2
= 4ay is
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x + a = 0
x - a = 0
y + a = 0
y - a = 0
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Question # 8
The perpendicular bisector of any chord of a circle
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Passes through the centre of the circle
Does not pass through the centre of the circle
May or may not pass through the centre of the circle
None of these
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Question # 9
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0
-1
1
2
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Question # 10
If Z
1
= 1 + i, Z
2
= 2+3i, then |Z
2
- Z
1
| = ?
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Question # 11
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Question # 12
Each point of the feasible region is called
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Solution
feasible solution
Both a & b
None
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Question # 13
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- cos x
sin x
- sin x
sec x
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Question # 14
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 # 15
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Question # 16
a + x is ______
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A trinomial
A binomial
A monomial
None of these
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Question # 17
(A∩Bc)c= -------------------------
Choose an answer
Ac∪Bc
Ac∪B
Ac∩B
None of these
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Question # 18
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Question # 19
The set {-1,1} is closed under the binary operation of
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Addition
Multiplication
Subtraction
Division
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Question # 20
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n if n is even
0 for any natural number n
1 if in odd
None of these
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Question # 21
The square root of 2i - 20i is
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±(5 - 2i)
±(5+ 2i)
(5 - 2i)
None of these
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Question # 22
cos(a +β)-cos(a-β) = _______;
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2cosa cosβ
2sina cosβ
-25 in a cosβ
-2sin a sinβ
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Question # 23
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Question # 24
{0} is a
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Empty set
Singleton set
Zero set
Null Set
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Question # 25
The middle term of the expansion (1 + 2x)
6
is ______
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1st term
4th term
2nd term
5th term
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Question # 26
cos 6θ + cos 2 θ =_______;
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-2sin 4θ sin 2θ
2cos4θ cos2θ
2sin4θ cos2θ
2cos4θ sin2θ
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Question # 27
It is not possible to find the exact value of
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π
√9
∛27
√1
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Question # 28
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Question # 29
If f(x) = cos x then f(0) is
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0
1
1/2
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Question # 30
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Reflexive property
Symmetric property
Transitive property
Additive property
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Question # 31
tan 294° =______;
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tan 24°
-tan 24°
cot 24°
-cot 24°
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