Question # 1

log_a1=

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1

10

0

e

HCF of a³+b³ and a²-ab+b² is:

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a+b

a²-ab+b²

(a-b)²

a²+b²

The matrix M = [2 -1 7] is called:

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Row matrix

Column matrix

Diagonal matrix

Zero matrix

H.C.F of p³q - pq³ and p⁵q² - p²q⁵ is _________:

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pq(p²-q²)

pq(p-q)

p²q²(p-q)

pq(p³-q³)

An equilateral triangle is an _________ triangle:

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Rounded

Equiangular

Scalene

Right angled

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3-by-2

2-by-3

1-by-3

3-by-1

In acute angled triangle _______ angles are less then 90°:

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1

2

3

None of these

With three digits in integral part, the characteristics will be:

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Two

Three

One

0

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16cm²

12cm²

8cm²

20cm²

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Perpendicular

Congruent

Parallel

Equal

A triangle can have only ______ right angle:

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1

2

3

4

An ______________ is defined as the union of two non-col-linear rays with some common end point:

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angle

vertex

initial side

terminal

1/1+ sinθ + 1/1-sinθ

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2sec²θ

2 cos²θ

Sec²θ

cosθ

π/4 radians =...........................

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30^o

60^o

45^o

90^o

The most frequent occurring observation in a set of data is called.

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Mode

Median

Hamonic mean

Mean

The formula of area of circular sector is:

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l = rθ

r²θ

1/2r²θ

2r²θ

The sum of 30 observations is 1500. Its average will be:

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1500

150

15

None of these

A subset of A x A is called.................. in A.

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Set

Relation

Function

Info function.

A histogram is a set of adjacent.........

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Squares

Rectangles

Circles

Dots

The measure of central tendency which is not affected by extreme values is called:

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Median

Arithmetic mean

Geometric mean

None of these

Cos 60^o =.................................

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1/2

√3/2

2

2/√3

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Rational number

Irrational number

Natural number

Real number

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If two sets have no element common, they are called:

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disjoint

over lapping

dissimilar

exhaustive

In a triangle ABC, (s - a)(s - b) = s(s - c), then the angle Γ =

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10π

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A.P

G.P

H.P

none

If a_n-3 = 2n - 5 then a_n =

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2n-1

2n+1

2n+3

none

r₂ =

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If S is the H.M between 2 and b then b = :

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-10

10

7

5

The roots of the equation:

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complex

irrational

rational

none of these

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°

The period of sec 2x is:

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