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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
Choose an answer
(a + b)c = ac + bc
a + b = b + a
(a + b) + c = a + (b + c)
a(b +c) = ab + ac
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Question # 2
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I
14 I
0
None of these
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Question # 3
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Question # 4
The general term of the A.P. is
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a
1
+ (n - 1) d
n + (a
1
- 1) d
d + (n - 1) a
1
None of these
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Question # 5
sin(3π/2 -θ)=_______;
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sinθ
cosθ
-sinθ
-cosθ
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Question # 6
A quadratic equation has two
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roots
degree
variables
constants
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Question # 7
If f(x) = x
2
then f(0) is
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0
1
2
none of these
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Question # 8
∫
f
(x) is known as:
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Definite itegral
Indefinite integral
Fixed integral
Multiple integral
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Question # 9
Optimize means ______ a quantity under certain constraints
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Minimize
Maximize
Maximize or minimize
None of these
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Question # 10
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Question # 11
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5 / 12
3 / 8
5 / 8
7 / 4
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Question # 12
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none of these
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Question # 13
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1
-1
5
2
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Question # 14
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sin h x
cos h x
sec h x
cosec h x
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Question # 15
The line through the focus and perpendicular to the directrix is called ______ of the parabola
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axis
focal chord
tangent
latus rectum
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Question # 16
The set {Z\ {0} } is group w.r.t
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Addition
Multiplication
Division
Subtraction
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Question # 17
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Question # 18
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Question # 19
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Question # 20
The st. lines whose direction cosines satisfy al + bm + cn = 0, fmn + gnl + hlm=0 are perpendicular if
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Question # 21
The latus rectum of the ellipse 5x
2
+ 9y
2
= 45 is
Choose an answer
10 / 3
5 / 3
3 / 5
3 / 10
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Question # 22
The number of arbitrary constants in the general solution of a differential equation is equal to the different equation
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Order
Degree
Variables
All are correct
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Question # 23
The probability to get an odd number in a dice thrown once is
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6
1
1/6
1/2
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Question # 24
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Associative property of addition
Associative property of multiplication
Commutative property of addition
Commutative property of multiplication
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Question # 25
The geometrical representation of a linear function is
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Circle
Parabola
Straight lie
None of these
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Question # 26
The maximum value of sin x + cos x is
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Question # 27
There are n seats round a table numbered 1, 2, 3 .... n. The number of ways in which m person can take seats is
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n
P
m
n
C
m
x (m - 1) !
n-1
P
m
None of these
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Question # 28
(0.90)
1/2
is equal to
Choose an answer
0.99
0.90
0.80
0.88
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Question # 29
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Question # 30
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Question # 31
If Z = (1,2), then Z
-1
= ?
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(0.2, 0.4)
(-0.2, 0.4)
(0.2, -0.4)
(-0.2, -0.4)
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