Question # 1

A numbers exceeds its square root by 6, the number is:

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6

3

9

none of these

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The number of diagonals of a polygon with n sides is:

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none of these

If A and B are two matrices, then:

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A B = O

AB = BA

AB = I

AB may not be defined

Numbers are formed by using all the digits 1, 2, 3, 4, 5, 6 on digit being repeated, then the numbers which are divisible by 5 are:

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110

120

122

124

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

A dice is thrown. The probability to get an odd number is;

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1

none of these

Four fourth roots of 625 are:

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±5,±5i

±5,±25i

±25,±25i

none of these

Conjugate of a- i b is:

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b + ia

-a + ib

-a - ib

a + ib

Distinct objects means:

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identical objects

not identical

similar

none of these

tan (270° + Θ) is equal:

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cot Θ

tan Θ

-cot Θ

-tan Θ

The additive inverse of a matrix A is:

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A

A^-1

- A

A²

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equal sets

null sets

overlapping sets

subsets

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sin^-1 (-x) =

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-sin^-1 x

sin^-1x

π + cos^-1x

-cos^-1x

x2 - 5x + 6 = 0 is:

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A reference angle Θ is always:

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If the roots of x² - bx + c = 0 are two consecutive integers, then: b² - 4ac =

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0

1

-1

2

The period of cosec 3x is:

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180° = _____________:

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π radians

π is defined as:

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ration of diameter of a circle to its circumference

ration of the circumference of a circle to its diameter

ration of area of a circle to its circumference

ration of the circumference of a circle to its area

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