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NAT I Engineering Mathematics MCQs With Answers
Question # 1
The set (Q, .)
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Infinite set
Singleton set
Two points set
None
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Question # 2
If p and r are integers P = 0, and p ≠ -r, which of the following must be true?
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p < r
p > r
p + r < 0
p - r < -0
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Question # 3
Sin(a + b) + Sin(a- b) =
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Sin a Cos b
Sin a Sin b
Sin a + Cos b
Sin a - 2Cos b
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Question # 4
If Sin θ =Cosθ then θ=
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30°
45°
60°
90°
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Question # 5
Which of the following is not defined?
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Arcsin 1/9
ArcCos (-4/3)
Arctan 11/12
Arccot (-4)
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Question # 6
The mid point of the line joining (=1,-3) to(3,-5) is
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(1, 1)
(1,-1)
(2, -8)
(1, -4)
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Question # 7
Any point where f is neither increasing nor decreasing and f(x) =0 at that point is called a
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Minimum
Maximum
Stationary point
Constant
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Question # 8
The number of diagonals of a six sided figure are
Choose an answer
9
6
12
3
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Question # 9
For any set X, X∪X is
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15
15i
-15i
-15
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Question # 10
The value of the polynomial 3x
3
+ 4x
2
- 5x + 4 at x = -1 is
Choose an answer
A
2
+ B
2
A
2
+ B
2
+ 2AB
A + B
A
2
+ B
2
+ AB+BA
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Question # 11
6 is
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A prime integer
An irrational number
A rational number
A odd integer
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