Question # 1

If s denotes the length of the arc intercepted on a circle of radius r by a central angle of α radians, then:

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s = rα

s = r + α

none of these

Probability of an impossible event is:

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0

1

-1

∞

The conjunction of two statements p and q is denoted by:

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quadratic equation

reciprocal equation

exponential equation

none of these

If sin α < 0 and cos α > 0, then α lies in:

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I

II

III

IV

If any two rows of a square matrix are interchanged, the determinant of the resulting matrix:

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is zero

is multiplicative inverse of the determinant of the original matrix

is additive inverse of the determinant the original matrix

none of these

A - B is a subset of:

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A

B

(x + 3) (x + 4) = x2 + 7x + 12 is:

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10π

The other name of quadratic equation is:

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linear equation

1st degree equation

2nd degree equation

none

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

tan (270° + Θ) is equal:

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cot Θ

tan Θ

-cot Θ

-tan Θ

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right angled

equilateral

isosceles

obtuse angled

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0

2

1

3

In triangle the length of the sides are 7, 4√3 and √13. Then the smallest angle is:

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15°

30°

60°

45°

A matrix in which each element is 0 is called:

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If z = x + i y = r (cos Θ + i sin Θ), then arg z is:

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tan Θ

cos²Θ + sin²Θ

r

Θ

Truth table containing all the values true is called:

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absurdity

conjunction

tautology

none

1 radian is equal to:

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180°

none of these

No. of arrangements of the letters of the word PAKISTAN can be made, taken all together ?

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21160

20160

20170

20016

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A

B

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