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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
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Question # 3
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Question # 4
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1
0
-2
3
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Question # 5
The general term of a sequence is denoted by
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a
1
a
n
n
s
n
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Question # 6
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1
-i
i
0
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Question # 7
The maximum value of the quadratic function f(x) = -2x2+20x,is
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4
3
50
7
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Question # 8
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Question # 9
The symbol ______ shall be used both for equation and identity
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Question # 10
If d
1
is the distance between (0,0) and (1,2) and d
2
is the distance between (0,0) and (-1,-2) the
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d
1
< d
2
d
1
> d
2
d
1
= d
2
none of these
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Question # 11
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A finite set
An infinite set
An empty set
None of these
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Question # 12
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Question # 13
A quadratic equation in x is an equation that can be witten in the form
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ax
2
+ b = 0
ax
3
+b
2
+c=0
ax
2
+bx+c=0
ax
3
+bx
3
+cx=0
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Question # 14
Which of the vectors have opposite direction?
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Question # 15
sin(π/2+θ) = _______;
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sinθ
cosθ
-sinθ
-cosθ
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Question # 16
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-2x cos x
2
-2x
2
sin x
2
-x
2
sin x
-2x
2
sin x
2
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Question # 17
The identity elements with respect to subtraction is
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0
1
-1
Does not exist
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Question # 18
The total cost of 2 apples and 3 oranges is $1.70, which of the following is true
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The cost of one apple
The cost of one orange
Both have equal cost per item
Cost of each single item can not be determined
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Question # 19
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Question # 20
The period of|sin2x| is
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π/2
-π/2
π
π/3
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Question # 21
if A = (x/x€ Q˄ 0 < x < 1}, the A is
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Infinite set
Finite set
Set of rational numbers
Set of real numbers
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Question # 22
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a tan(ax + b) + c
- a tan(ax + b) + c
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Question # 23
The key for opening a door is in a bunch of 10 keys. A man attempts to open the door by trying the keys at random discarding the wrong key. The probability that the door is opened in the 5th trial is
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1 / 10
2 / 10
3 / 10
4 / 10
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Question # 24
The sum of the coefficient in the expansion of (a + x)
5
is
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32
16
8
5
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Question # 25
The mid point of the line segment joining the points (4,0) and (0,4) is
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(4,4)
(2,2)
(-4,-4)
(-2,-2)
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Question # 26
If f(x) = x
2
then f(0) is
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0
1
2
none of these
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Question # 27
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An upper triangular matrix
A lower triangular matrix
A diagonal matrix
A null matrix
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Question # 28
If f(x) = -x
3
then f(-2) is
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-2
-4
-8
8
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Question # 29
What is the probability of being born on Wednesday?
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1/7
1/2
1/3
1/8
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Question # 30
If A and B are two disjoint events then
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P(A∪B)=P(A)+P(B)
P(A∪B)=P(A)-P(A∪B)
P(A∪B)=P(A)or P(B)
None
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Question # 31
Which of the following ordered pair is a solution of the inequality x+2y<6?
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(2,3)
(2,2)
(6,0)
(1,1)
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