Question # 1

The gradient of the line joining (1,4) and (-2,5) is

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3/8

-2 2/3

-1/3

2

The set {1, -1, i, -i}, form a group under

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addition

multiplication

subtraction

None

What is the period of Cot x?

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2π

π

π/2

4π

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

The number of real roots in cube roots of 8 is ?

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n x m

m x n

km x n

m x kn

The magnitude of a vector can never be

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Zero

Negative

Positive

Absolute

If x < y, 2x = A and 2y = B then

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A =B

A < B

A< X

B < y

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

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12

8

16

1

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

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0

±1

1

{0,1}

If a cone is cut by a plane perpendicular to the axis of the cone then the section is a

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Parabola

Circle

Hyperbola

Ellipse

Sec^-1 x=

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Cos^-1 1/x

Cosec^-1 1/x

Cos-1 (-x)

Tan^-1 x

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NAT I Engineering Mathematics MCQs With Answers

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