Question # 1

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1

7

4

None of these

2.333....is a

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Irrational no

Complex no

Rational no

None of these

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I

|A|

|A| I

None of these

π is ______

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A complex number

A rational number

A natural number

An irrational number

The point of concurrency of the medians of a triangle is called

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incentre

circumcentre

e-centre

centroid

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Area of the triangle whose vertices are (2,3),(0,1),(0,0) is

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6

2

4

1

30° = ______

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The set (Q, .)

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Forms a group

Does not form a group

Contains no additive identity

Contains no additive inverse

x = 1 is in the solution of the inequality

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x + 1 > 0

x - 2 > 0

3x - 1 < 0

x + 2 < 0

How many arrangements of the letters of the word ADDING can be made

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For n€ N,2^n>2 > n is to only when

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n<2

n≤ 4

n≥ 4

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none of these

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Reciprocal equation

Exponential equation

Radical equation

None of these

The domain of the principle sine function is

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2

4

8

12

Te order of the differential equation of all conics whose axes coincide with the axes of co-ordinates is

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2

3

4

1

The complement of set A relative to universal set U is the set

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{x / x∈ A∧ x∈ U}

{x / x∉ A∧ x ∈ U}

{x / x∈ A and x ∉ U}

A-U

If a parabola opens down, then its vertex is at the

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Right of the parabola

Left of parabola

Lowest point on the parabola

Highest point on the parabola

Six boys and 3 girls are to be seated at random, in a row, for a photograph. The probability that no two girls will sit together is

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1/12

1/6

5/12

7/12

If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =

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5

{-3,-2,-1,0,1,2,3,4,5,6}

8

9

Domain of sin x is ______

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What is the axis of the parabola y²= 4ax?

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x = 0

y = 0

x = a

y = 0

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I

14 I

0

None of these

System of linear equations is inconsistent if

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System has no solution

System has one solution

System has two solution

None of above

A point of a solution region where two of its boundary lines intersect, is called

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Boundary

Inequality

Half plane

Vertex

If 2 tan¹(cos x) = tan^-1(cosec²x), then x is equal to

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π/ 3

π/ 2

π/ 6

π

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Addition

Subtraction

Multiplication

None of these

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The sum if 1,3,5,7,9........ up to 20 terms is

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400

472

563

264

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