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NAT I General Science Mathematics MCQs With Answers

Question # 1

6 is

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A prime integer

An irrational number

A rational number

A odd integer

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Question # 2

Given X, Y are any two sets such that number of elements in X=28, number of elements in set Y=28, and number of elements in set X∪Y=54, then number of elements in set X∩Y=

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-7 + 2i

7 + 2i

7-2i

√53

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Question # 3

d/dx [cos x²] =________

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-2x cos x²

-2x² sin x²

x² sin x

-2x² sin x²

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Question # 4

The set (Z, +) forms a group

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Function on B

Range

Domain

A into B

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Question # 5

0 (zero) is

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A irrational number

A rational number

A negative integer

A positive number

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Question # 6

If f₁ (x) and f₂ (x) are any two anti derivatives of a function F (x) then the value of f₁ (x) = f₂ (x)

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A variable

A constant

Undefined

Infinity

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Question # 7

If i,m,n are the direction cosines of a vector O̅P̅ then

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I² + m² + n² =0

I² - m² + n² =1

I² + m² + n² =1

I² + m² - n² =0

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Question # 8

The line through the center and perpendicular to the transverse axis is called the

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Major axis

Minor axis

Focal axis

Conjugate axis

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Question # 9

The equation of the normal to the circle x² + 2² = 25 at (4,3) is

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3x -4y =0

3x -4y= 5

4x + 3y=5

4x - 3y =25

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Question # 10

The parametric equation of a curve are x = t², y = t²then

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dy/dx =3t/2

dy/dx =t⁵

dy/dx =5t⁴

None

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Question # 11

The point (-5,3) is the center of a circle and P(7,-2) lies on the circle the radius of the circle is

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