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NAT I General Science Mathematics MCQs With Answers
Question # 1
∫1/ax +b dx =
Choose an answer
1/a log |ax + b| +c
Log |ax + b| +c
1/b log |ax +b| +c
1/x log |ax + b| +c
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Question # 2
If C
n
r
, P
n
r
= 24:1 then r = ?
Choose an answer
1
2
3
4
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Question # 3
If Sin
-1
x + cos
-1
y = π, then x and y are
Choose an answer
Associative angles
Complementary angles
Reflex angles
Supplementary angles
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Question # 4
8 > t then
Choose an answer
(s -t)
2
>(t -8)
2
(s -t)
2
<(t -8)
2
(s -t)
2
=(t -8)
2
None
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Question # 5
1+2+3+......+n=?
Choose an answer
n(n +1)/2
n +1/2
n(n +1)(2n +1)/6
n
3
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Question # 6
A sequence of numbers whose reciprocals forms an arithmetic sequence is called
Choose an answer
Harmonic series
Arithmetic series
Harmonic sequence
Geometric sequence
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Question # 7
Which is an explicit function
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y = x
2
+2x -1
x
2
+xy +y
2
=2
xy
2
-y +9/xy =1
All are
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Question # 8
If |A| ≠ 0 then A is called
Choose an answer
1
-1
±1
0
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Question # 9
There are 30 Red, 20 Green and some Blue bells in a bag if the probability of finding a Red ball is 1/3,how many are red balls in the bag
Choose an answer
120
20
40
90
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Question # 10
Write the first four term of the arithmetic sequence if a
1
= 5 and other three consecutive terms are 23,26,29
Choose an answer
18 years
36 years
8 years
16 years
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Question # 11
If the angle between two vectors with magnitude 8 and 2 is 60° then their scalar product is
Choose an answer
12
8
16
1
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Question # 12
Tan
-1
1/x =______
Choose an answer
Sin x
Sec
-1
X
Cot
-1
X
Sin Ix/cos- Ix
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Question # 13
The nth term in G.P 3,-6,12,............ is
Choose an answer
25, 20
20, 10
20, 5
15, 10
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