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NAT I Engineering Mathematics MCQs With Answers
Question # 1
120° degrees are equal to how many radians?
Choose an answer
π/3 radians
2π/3 radians
π/4 radians
π/2 radians
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Question # 2
The curves y =x
2
, y= x interest at
Choose an answer
(0,0) ,(1,1)
(2,4)
(0,),(2,4)
(0,3),(-1,1)
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Question # 3
3/2 is
Choose an answer
An irrational number
Whole number
A positive integer
A rational number
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Question # 4
Multiplicative inverse of "1" is
Choose an answer
4
3
2
1
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Question # 5
Two natural numbers whose sum is 25 and difference is 5, are
Choose an answer
25, 20
20, 10
20, 5
15, 10
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Question # 6
If Sin θ =Cosθ then θ=
Choose an answer
30°
45°
60°
90°
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Question # 7
If Z
1
= 1+i, Z
2
= 2+3i, then |Z
2
-Z
1
|=?
Choose an answer
√3 I
√7
-2-1
√5
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Question # 8
What is the domain of y= Sin
-1
x?
Choose an answer
-1 ≤ x ≤1
1 ≤ x ≤ 1
0 ≤ x ≤ π
-π/2 ≤ x ≤ π/2
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Question # 9
An angle 0 is such that tan θ = 1 and cos θ is negative then
Choose an answer
Sin θ is positive
Cos θ = √2/4
cosθ = -1
sec θ is negative
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Question # 10
The line joining (1,3) to (a,b) has unit gradient then
Choose an answer
a-b =-2
a+b = 0
A-b =5
2a + 3b =1
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Question # 11
If any two rows (or any two columns) of a square matrix are inter changed, the determinant of the resultant matrix is
Choose an answer
True
False
Fallacious
Some times true
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