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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
The system of measurement in which the angle is measured in radians is called the
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circular system
CGS system
sexagesimal system
none of these
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Question # 2
cos(π/2-θ) = ________;
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cosθ
sinθ
-cosθ
-sinθ
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Question # 3
If there is one-one correspondence between A and B, then we write.
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A = B
A⊆ B
A⊇ B
A ∼ B
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Question # 4
Sin 45° = ______
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Question # 5
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Reflexive property
Symmetric property
Transitive property
Additive property
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Question # 6
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sec x tan x
-cosec x cot x
sec
2
x
-sin x
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Question # 7
Which one is a pair of allied angles
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(180° -
θ)
(180° -
θ,
180° +
θ)
(180° +
θ)
None of these
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Question # 8
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Question # 9
In R the right cancellation property w.r.t. addition is
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Question # 10
A rule that assigns to each elements x in X a unique element y in Y is called a ____________
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domain
range
function
none of these
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Question # 11
Which of the following is the subset of all sets?
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Question # 12
A die is thrown 100 times. If getting an odd number is considered a success, the variance of the number of successes is
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50
25
10
100
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Question # 13
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Question # 14
The period sin
2
θ
is
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π
2
π
2
π
π/2
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Question # 15
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Question # 16
The eccentricity of the conic 9x
2
- 16y
2
= 144 is
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4/5
5/4
4/3
3/4
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Question # 17
I is not
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Real number
Natural number
Prime Number
Whole Number
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Question # 18
A statement which is either true or false is called
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Induction
Deduction
Propositicon
Logic
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Question # 19
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Question # 20
The no of term is the expansion of (a+x)n-1 is
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n+1
n-1
n
n-2
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Question # 21
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Question # 22
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An expression
Rational fraction
Equation
Identity
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Question # 23
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0
1
-1
None of these
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Question # 24
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Question # 25
The principal value of sin
-1
(-1/2)
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π/3
π/4
π/6
-π/6
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Question # 26
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Question # 27
The set R is ........w.r.t subtraction
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Not a group
A group
No conclusion drawn
Non commutative group
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Question # 28
A,G,H are in
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A.P
G.P
H.P
None of these
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Question # 29
Three consecutive terms of a progression are 30, 24, 20. The next terms of the progression is
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Question # 30
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 # 31
The property used in -3 <-2 ⇒0 <1
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Commutative property
Additive property of inequality
Additive inverse
Additive identity
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