Question # 1

In a circle of radius r, an arc of length kr will subtend in angle of __________ radians at the center:

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s

k

r

Θ

The multiplicative invers of a non-zero real number a is:

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0

-a

a

The graph of y = cos^-1 x is obtained by reflecting the graph of y = cos x about:

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x-axis

y-axis

y = x

y = -x

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2

4

6

8

The series 2 + 2 + 2 ..... is:

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divergent

convergent

oscillatory

none of these

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3

-3

1/3

-1/3

ⁿC₄ =ⁿC₈then n = :

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4

12

8

6

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A

B

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r₁

r₂

r₃

r

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scalarmatrix

diagonalmatrix

lower triangularmatrix

uppertriangularmatrix

i² + 1 =

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-1

0

i

1

The additive inverse of a matrix A is:

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A

A^-1

- A

A²

For what value of k, the roots of the equation x² + √k x + 2 = 0 are equal:

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1

8

2

4

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If a polynomial P(x) = x2 + 4x2 - 2x + 5 is divided by x - 1, then the reminder is:

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8

-2

4

5

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- cot Θ

- tan Θ

tan Θ

none of these

If W = {0, 1, 2, 3, 4, ........}, N = {1, 2, 3, 4 ...........} then N - W = ?

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W

{0}

none of these

A function f(x) is said to be the periodic function if, for all x in the domain of f, there exists a smallest positive number p such tat f (x + p) = ________:

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f (p)

x + p

0

f(x)

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If each element in any row or each element in any column of a square matrix is zero, then value of the determinant is:

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0

1

-1

none of these

A dice is thrown. The probability to get an even number is:

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1

none of these

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