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NAT I Engineering Mathematics MCQs With Answers

Question # 1

Graph of the equation X² + y² = 4 is

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a circle

an ellipse

a parabola

A square

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Question # 2

Let A, B, and C be any sets such that A∪B=A∪C and A∩B=A∩C then

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A ≠ C

B = C

A = B

A ≠ B

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Question # 3

The length of rectangle is twice as much as its breadth. If the perimeter is 120 cm, the length of the rectangle is

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Same as the original determinant

Additive inverse of the original determinant

Both A and B

Adj of the original matrix

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Question # 4

The radius of the circle (x- 1)² + (y + 3)² =64 is

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2√2

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Question # 5

If the angle between two vectors with magnitude 8 and 2 is 60° then their scalar product is

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Question # 6

Period of Sin 2x =

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4π

2nπ

2π

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Question # 7

The set of complex numbers forms a group under the binary operation of

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±1

{0,1}

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Question # 8

Sin (2π -θ) =______.

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Cosθ

-Sinθ

-cosθ

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Question # 9

The circle (x -2)² + (y + 3)² =4 is not concentric with the circle

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(x -2)² + (y + 3)² =9

(x +2)² + (y - 3)² =4

(x -2)² + (y + 3)² =8

(x -2)² + (y + 3)² =5

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Question # 10

If f(x) : A → B and g (x) : A → B then Dom [f(x) + g(x)] is

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Dom f(x) ∩ Dom g (x)

Dom f(x) ∪ Dom g(x)

[Domf(x)]² - [Dom g(x)]²

[Dom g(x)]²-[Domf(x)]²

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