Question # 1

If f (x) = |x|, then (0,0) is the

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Critical point

Inflection point

Stationary point

None of these

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28 / 81

28 / 243

81 / 28

243 / 82

The angle between the vectors u =2i - i + k and v = -i + i is:

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3π/2

2π/3

5π/6

π/3

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The period of|sin⁡2x| is

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π/2

-π/2

π

π/3

The set of rational numbers is subset of

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The set of natural numbers

The set of real numbers

The set of integers

The set of whole numbers

The position vector of a point (x, y) in xy plane is

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none of these

Matrices A = [aij] 2 x 3 and B =[bij] 3 x 2 are suitable for

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BA

A²

AB

B²

The seventh term of an A.P whose first term is P and common difference is q. is

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P-6q

P+6q

P-4q

P-nq

(n + 2) (n + 1)n in factorial form is

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3x + 4 < 0 is

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inequality

equation

identity

not inequality

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range of f

domain of f

both (a) and (b)

none of these

Which of the following is skew symmetric matrix

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A function which is to be maximized or minimized is called an

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Explicit function

Implicit function

Objective function

None

The tangent to the parabola y2 =4ax and perpendicular line from the focus on it meet

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x =0

y =0

x =-9

y = -a

A diagonal matrix in which the diagonal elements are equal is called a

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Null matrix

Identity matrix

Scalar matrix

Row matrix

cos(π/2-θ) = ________;

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cosθ

sinθ

-cosθ

-sinθ

Geometric mean between a and b is

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2s²

2s³

s³

3s³

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The sum of infinite numbers of terms of an arithmetic series is

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Finite

Infinite

May or may not finite

None of these

Which of the following is the subset of all sets?

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6x + 2 + c

6x + x²+ c

6x³+ x²+ x

A chord passing through the centre of the circle is called

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the secant of the circle

the tangent of the circle

the arc of the circle

the diameter of the circle

How many comittees of 5 numbers can be chosen from a group of 8 players person when each committee must include 2 particular persons

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8!

5!3!

5!

20

3/2 is

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An irrational number

Whole number

A positive integer

A rational number

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The point P (5,8) and the origin lie on the side of the line 3x+ 7y+ 15 =0

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Same side

P above and origin below

Opposite side

P below and origin above

If x,y are two -ve distinct numbers then

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A>G>H

A<G<H

A=G=H

None of these

How many arrangements of the letters of the word ADDING can be made

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