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ECAT Mathematics Online Test MCQs With Answers
Question # 1
InΔABC if y = 90° then the Pythagoras theorem is
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b2 + c2 =a2
a2 + b2 = c2
a2 +c2 = b2
None of these
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Question # 2
If line through (4,3) and (2,k) is perpendicular to y =2x +3, then k =_______
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-1
1
-4
4
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Question # 3
∀x,y∈ R and x < 0, y < 0, which one is true
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xy < o
xy = o
xy > o
None of these
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Question # 4
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Question # 5
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Question # 6
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c = 0
c = -1
c = -2
c = 1
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Question # 7
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Question # 8
(A∪B)∪C= --------------------------
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A∩B(B∪C)
A∪(B∪C)
A∪(B∩C)
None of these
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Question # 9
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b = c
a = c
a = c
b = 0
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Question # 10
The multiplicative inverse of -1 in the set {1-, 1} is
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1
-1
0
Does not exist
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Question # 11
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Question # 12
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none of these
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Question # 13
A non-terminating, non-recurring decimal represent
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A natural number
A rational number
An irrational number
A prime number
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Question # 14
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Question # 15
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Question # 16
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Only one real solution
Exactly three real solution
Exactly one rational solution
Non-real roots
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Question # 17
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Question # 18
There may be ______ feasible solution in the feasible region
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Infinite
Finite
Defined
None of above
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Question # 19
Multiplying each side of an inequality by (-1) will:
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Not effect
Change the sign
Become zero
Not defined
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Question # 20
x = sin
-1
3, then the value of sin x is
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√(3/2)
3
Not possible
-1
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Question # 21
f(x) = 3x
4
-2x
2
+ 7 is:
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an even function
an odd function
an even and implicit function
neither even nor a odd
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Question # 22
sec (-360°) = ______
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0
1
2
3
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Question # 23
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0
undefined
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Question # 24
The sum of all odd numbers between 100 and 200 is
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6200
7500
6500
3750
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Question # 25
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none of these
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Question # 26
Every recurring decimal represents
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A natural number
A rational number
An irrational number
A whole number
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Question # 27
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n(A)
n(B)
0
1
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Question # 28
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Question # 29
Cos 60° = ______
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1
2
1/2
3
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Question # 30
(1, 2) is in the solution of the inequality
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2x + y > 8
2x + y
<
6
2x - y > 1
2x + 3y < 2
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Question # 31
Domain of cos x is ______
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