Question # 1

Multiplicative inverse of "1" is

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4

3

2

1

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

Unit vector in the positive direction of x-axis is

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î

ĵ

k̂

All

If A and B are matrices such that AB=BA=I then

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A and B are multiplicative inverse of each other

A and B are additive inverses of each other

A and B are singular matrices

A and B are equal

If the 9^th tern of A.P is 8 and the 4^th term is 20. then the first term is

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1

2

-2

-1

Sin (2π -θ) =______.

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Cosθ

-Sinθ

-cosθ

How many different arrangements of the letters in the word QABABA are Possible?

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720

40

60

30

The two different parts of the hyperbola are called is

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Vertices

Directrices

Nappes

Branches

What is the domain of y= Sin^-1 x?

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-1 ≤ x ≤1

1 ≤ x ≤ 1

0 ≤ x ≤ π

-π/2 ≤ x ≤ π/2

The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

If 1 + Cos x = 0 then x =

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π +2n π

π + nπ

π - nπ

π/2

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NAT I Engineering Mathematics MCQs With Answers

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