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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
If a, b, c are in AP., a, b, c are in G.P. then A, m
2
b, c are in
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A.P.
G.P.
H.P.
None of these
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Question # 2
If nis positive integers, then 2
n
>2n+1, only when
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n≤ 3
n≥ 3
n≤ 2
n≤ 1
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Question # 3
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 # 4
∛8.6 is approximately equal to
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2.488
2.48
2.0488
2.05
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Question # 5
The set of all points in the plane that are equally distant from a fixed point to called a
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Parabola
ellipse
Hyperbola
Circle
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Question # 6
sin(π/2+θ) = _______;
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sinθ
cosθ
-sinθ
-cosθ
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Question # 7
The direction cosines of a line equally inclined with co-ordinate axes are
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Question # 8
i
101
=
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i
i
2
-i
-1
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Question # 9
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Question # 10
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Question # 11
(a,0) x (c, 0) =
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(0,ac)
(ac, 0)
(0,0)
(a, c)
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Question # 12
The solution set of the equation 1 + Cos x = 0 is __________
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none of these
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Question # 13
A line segment whose end points lie on a circle is called
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The secant of the circle
The arc of the circle
The chord of the circle
The circumference of the circle
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Question # 14
The study conics, pappus used the method of:
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analytic geometry Euclidean
solid geometry
Greek mathmaticians
None of these
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Question # 15
If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =
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5
{-3,-2,-1,0,1,2,3,4,5,6}
8
9
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Question # 16
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(a + b)c = a . c + bc
a + b = b + a
(a + b) + c = a + (b + c)
a(b+ c) = ab + ac
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Question # 17
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n(A)
n(B)
0
1
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Question # 18
The parametric equations of a circle are
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Question # 19
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square root function
identity function
linear function
quadratic function
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Question # 20
The total number of subsets that can be formed out of the set {a, b, c} is
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1
4
8
12
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Question # 21
A fraction in which the degree of the numerator is greater than or equal to the degree of the denominator is called
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A proper fraction
An improper fraction
An equation
An identity
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Question # 22
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Question # 23
Every relation, which can be represented by a linear equation in two variables, represents a
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Relation
Cartesian product
Function
Graph
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Question # 24
Write down the power set of {9, 11}
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Question # 25
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 # 26
Choose an answer
none of these
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Question # 27
A square matrix A for which A
t
= -A is called a
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Column matrix
Symmetric matrix
Skew-symmetric matrix
Row matrix
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Question # 28
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ab=-1
ab = 1
ab = 2
None
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Question # 29
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P(A) + P(B)
P(A) - P(B)
P(A) . P(B)
P(A) / P(B)
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Question # 30
If the roots of ax
2
- bx - c = 0 change by the same quantity, then the expression in a, b, c that does not change is
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Question # 31
The equations of the line thro' the point (2, 3, -5) and equally inclined to the axis are
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