Question # 1

In polar form of complex number r =

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The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

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cos 2x + c

- cos 2x + c

tan 2x + c

cot 2x + c

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0

-2

1

4

The maximum value of 12 sinθ-9 sin²θis x

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3

4

5

None of these

If | x | < 1, then the first two terms of (1 - x)^1/2are

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none of these

How many different 5-digit even numbers are possible form digit 1,2,4,6,8

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4 : 4!

4!

5!

4!+4!

The point _________ is in the solution of the inequality 2x + 3y < 5

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(1,1)

(2,2)

(0,1)

(0,2)

The obtuse angle between lines = -2 and y = x +2 is

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120°

135°

150°

140°

If the roots of ax²+ bx + c = 0 (a > 0) be greater than unity, then

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a + b + c = 0

a + b + c > 0

a + b + c < 0

None of these

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360°

180°

90°

None of these

The value of sin 28°cos 17°+cos 28°sin 17°is

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Riaz, Saba. Maria, Shehzad are to give speeches in a class. The teacher can arrange the order of their presentation in

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4 ways

12 ways

256 ways

24 ways

Find the geometric mean between 4 and 16

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Which of the following has the same value as i¹¹³?

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i

-1

-i

1

Which of the following is a scalar

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weight

force

speed

momentum

The square matrix A is skew Hermitian when (A)'=

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A

A'

-A

A

The factorial of a positive integers is a (an)

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Rational number

Positive integer

Real number

None

By expressing sin 125° in terms of trigonometrical ratios, answer will be

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sin 65° = 0.9128

sin 55° = 0.8192

sin 70° = 0.5384

sin 72° = 0.1982

The conic is a parabola if

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e < 1

e > 1

e = 1

None of these

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0

1

-1

none of these

The matrix A = [aij]1xn is a

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Vector

Rectangular matrix

Column vector

Square matrix

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16 / 7

6 / 17

7 / 16

None of these

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In the function f: A⟶B, the elements of a are called

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Images

Pre-images

ranges

Parameters

Which of the following is an identity matrix?

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none of these

w¹⁵= ______

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0

1

w

w²

The numbers of G₁, G₂, G₃...... G_nare called n geometric means between a and b is a, G₁, G_2,G₃, ... G_n, b are in

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H.P.

A.P.

G.P.

None of these

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