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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
x = -1 is in the solution of the inequality
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x + 5 < 0
2x + 3
<
0
x > 0
2x + 3 > 0
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Question # 2
The function ø(x) is ananti derivativeof function f (x),x∈Df if
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ø′(x) =∫f(x)dx
ø(x) =∫f(x)dx
ø′(x) =f(x)
ø(x) =∫′(x)dx
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Question # 3
√11 is
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an irrational number
Rational number
odd number
Negative number
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Question # 4
The set of rational number is represented by
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W
R
Q'
Q
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Question # 5
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Question # 6
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Question # 7
The number of permutation that can be formed from the letters of the word OBJECT is
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700
600
720
620
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Question # 8
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Question # 9
A rule or correspondence that assigns to each element x in X a unique element y in Y is called a function from
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X to X
X to Y
Y to X
none of these
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Question # 10
Fundamental law is
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Question # 11
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Trichotomy property
Additive property of inequality
Transitive property
Multiplicative property
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Question # 12
Domain of cot x is ______
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Question # 13
The set {1,2,3,4......} is called
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Set of natural numbers
Set of whole numbers
Set of rational number
Set of irrational numbers
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Question # 14
Domain of 1+cot2θ=csc2θ is
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[0,π]
R-{x/x=nπ,n∈ z}
(-∞,+∞)
[-1,1]
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Question # 15
The sum if 1,3,5,7,9........ up to 20 terms is
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400
472
563
264
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Question # 16
In the expansion of (a + x)
n
the general term T
r + 1
is
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Question # 17
sin2 π/6 + sin2 π/3 + tan2 π/4 =______;
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1
2
3
4
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Question # 18
Choose an answer
1
2
3
None of these
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Question # 19
Let A is a 3 x 3 matrix and B is its adjoint matrix. If |B| = 64, then |A| =
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Question # 20
If you are looking someone on the ground from the top of a hill the angle formed is called angle of _______;
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Elevation
Depression
Right angle
None off these
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Question # 21
The graph of y < 2 is the
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Left half plane
upper half plane
Right half plane
Lower half plane
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Question # 22
The line through the intersection of the lines x+ 2y+ 3= 0 : 3x +4y +7 =0 and making equal intercepts on the axes is
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x+ y+ 1= 0
x+ y- 2= 0
x+ y+ 2= 0
2x +y +2 =0
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Question # 23
an -an-1,∀n∈N∧n>1 in an A.P is called
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Common difference
nth term
Common ratio
None of these
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Question # 24
If a polynomial p(x) is divided by x-c, then the remainder is
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p(x)
x-c
c
P(c)
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Question # 25
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Principle of equality of fractions
Rule for product of fraction
Rule for quotient of fraction
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Question # 26
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Question # 27
Te order of the differential equation of all conics whose axes coincide with the axes of co-ordinates is
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2
3
4
1
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Question # 28
6 is
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A prime integar
An irrational number
A rational number
An odd integer
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Question # 29
(ABC)' =
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CBA'
CBA
C' B' A'
None of these
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Question # 30
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Question # 31
If n is a positive integer then n! is
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(n - 1) (n - 2) .....3,.2.1
n(n - 1) (n - 2) ...3.2.1
n(n - 1 ) ( n -2) ... 3
None of these
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