Question # 1

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are real no

both are not real

are imaginary no

both are imaginary

The additive inverse of 2/3 is

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3/2

-2/3

-3/2

0

If sin A = cos A, 0°<A<90° then A is equal to

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1

1/2

0

None of these

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1, 1/2, 0

1, 2, 1

1, 2, 3

1, 2, 0

The domain of the principal tan function is

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Roots of the equation 2x²- 7x + 3 = 0 are

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Rational

Irrational

Complex

None of these

Matrices A = [aij] 2 x 3 and B = [bij] 3 x 2 are suitable for

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BA

A2

AB

B2

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4A - 3I

3A - 4I

A - I

None of these

For the equation |x²| + |x| -6 =0, the roots are

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One and only one real number

Real with sum one

Real with sum zero

Real with product zero

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2 x 2

2 x 3

3 x 2

3 x 3

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none of these

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none of these

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If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =

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1

12

5

29

The number of non zero rows in echelon form of a matrix is called

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Order of matrix

Rank of matrix

Row operation

None of these

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1

-1

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The point ________ is in the solution of the inequality 4x - 3y < 2

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(0,1)

(2,1)

(2,2)

(3,3)

The mid point of the line segment joining the points (4,0) and (0,4) is

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(4,4)

(2,2)

(-4,-4)

(-2,-2)

The unit vector along z-axis is

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none of these

IfΔABC is right, law of cosine reduce to

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Law of sine

Law of tangent

Phthogorous theorem

Hero's formula

The conjugate of √5 i is

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√5

-√5 i

i

5i

In a triangle if a > 45°,β > 30° then y cannot be

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90°

100°

10°

120°

Range of cosecθis

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W - {y | -1 < y < 1}

R - {y | -1 < y < 1}

O - {y | -1 < y < 1}

R

The probability that the sum of dots appearing in two successive thrown of two dice, in every time 7 is

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1/5

1/36

1/7

1/63

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Diagonal matrix

Scalar matrix

Triangular matrix

Identity matrix

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-1

0

1

Undefined

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cos x + c

-sin x + c

-cos x + c

sin x + c

nCn-r is equal to

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n!

n-1Cr

nCr

None of these

a + x is ______

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A trinomial

A binomial

A monomial

None of these

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