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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
Choose an answer
0
1
none of these
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Question # 2
A number A is called the arithmetic mean between a and b if a, A, b is ______
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Arithmetic sequence
Geometric sequence
Harmonic sequence
Arithmetic sequence
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Question # 3
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Closure law of addition
Associative law of addition
Additive inverse
Additive identity
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Question # 4
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Question # 5
The different of tan x is
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sec2 x
ln |sec x|
sec2 xdx
-cos ec2 x
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Question # 6
cos (180° -
θ
)=
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sin
θ
- cos
θ
- sin
θ
None of above
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Question # 7
The angle AOP which the ray from an observer's eye at O to an object at P at a lower level makes with horizontal ray OA through O is called the
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Angle of depression
Angle of elevation
Acute angle
Obtuse angle
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Question # 8
The solution of the equation cos
2
θ
+ sin
θ
+ 1 = 0 lies in the interval
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Question # 9
Cofactor of an element aij denoted by Aij is
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(-2)i+j
Mij
(-1)i+j Mij
None of above
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Question # 10
In (x +iy) y is called as
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Imaginary part
Complex number
Real part
None of above
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Question # 11
The symbol of irrational is
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W
N
Q
Q
'
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Question # 12
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Question # 13
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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Question # 14
Another name of quadratic equation is
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Polynomial
2nd degree polynomial
Linear equation
simaltaneous equations
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Question # 15
System of linear equations is inconsistent if
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System has no solution
System has one solution
System has two solution
None of above
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Question # 16
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Question # 17
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Question # 18
For any equilateral r :R :η :r1 :r2 :r3 =
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1:2:3:4:5
1:2:3:3:3
1:2:4:4:4
2:1 :2 :2 :2
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Question # 19
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Symmetric property
Cancellation property w.r.t. multiplication
Reflexive property
Transitive property
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Question # 20
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x
3
3x
2
3x
3
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Question # 21
(ABC)' =
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CBA'
CBA
C' B' A'
None of these
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Question # 22
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Question # 23
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Question # 24
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Question # 25
The vertex of the equation y
2
= 4ax is:
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(2, -2)
(1,1)
(0 , 0)
(2 , 2)
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Question # 26
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Question # 27
How many types of an equation
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1
3
2
None
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Question # 28
The number of solution of the equation tan x + sec x = 2 cos x lying in the interval [0, 2
π
] is
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0
1
2
3
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Question # 29
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2
-2
none of these
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Question # 30
ᵨ is a
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variable
Positive constant
Positive variable
Directrix
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Question # 31
If n∈Z+ then(a+x)n is a/an
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Finite series
Convergent series
Infinite series
Divergent series
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