Question # 1

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A prime number

An integer

A whole number

An irrational number

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ⁿC_r

ⁿ⁺¹C_r+1

ⁿC_r+1

None

Every identity matrix is

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Row-vector

Scalar

Column-vector

All

The set (Z, +) forms a group

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Forms a group w.r.t. addition

Non commutative group w.r.t. multiplication

Forms a group w.r.t multiplication

Doesn't form a group

(2, 1) is in the solution of the inequality

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2x + y > 7

x - y > 2

3x + 5y < 6

2x + y < 6

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2

4

6

8

The sides of a right angled triangle are in A.P The ratio of sides is

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1:2:3

3:4:5

2:3:4

5:8:3

(A∪B)∪C= --------------------------

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A∩B(B∪C)

A∪(B∪C)

A∪(B∩C)

None of these

The points A(+1,-1),B(3,0),C(3,7),D(1,8) are vertices of

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Square

Parallelogram

Rectangle

Trapezium

Every natural number is

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A prime number

An irrational number

An integer

An even number

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