Question # 1

If z = (x,y) , then z ̅ =

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(-x,y)

(x,-y)

(-x, -y)

None of these

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20

10

0

None of these

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The transpose of a zero matrix is a ______

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Column matrix

Zero matrix

Row matrix

Scalar matrix

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The seventh term of an A.P whose first term is P and common difference is q. is

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P-6q

P+6q

P-4q

P-nq

The velocity and acceleration at any point t of a particle which moves along straight line x = 5r-3

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5,3

5,-3

5,0

10,0

If the angle between two vectors with magnitude 2 and 15 is 30°then their scalar product is

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15

30

If f(x) = (-x)²then f(-2) is

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0

2

-4

4

f(x) = 3x⁴ -2x² + 7 is:

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an even function

an odd function

an even and implicit function

neither even nor a odd

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2 and 9

3 and 2

2/3 and 9

3/2 and 6

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3

1

4

Zero is

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An irrational number

A rational number

A negative integer

A positive number

The product of complex numbers (a,b) and (c,d) is

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(ac, bd)

(ac-bd, ad+bc)

(ab,cd)

(ac+bd,ad-bc)

the latus rectum of the parabola x³= -4ay is:

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x = a

y = -a

x = -a

y = 0

The equation of the chord of the circle x²+ y²- 4x = 0 whose mid-point is (1, 0) is

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y = 2

y = 1

x = 2

x = 1

If l, m, n are the d.c.'s of a line, then

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l2+ m2+ n2= 0

l2+ m2+ n2= 1

l + m + n = 1

l = m = n = 1

If (0,4) and (0,2) are vertex and focus of the parabola respectively, the the equation of the parabola is:

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x² = 4y -32

x² =8y -32

y³ = 16 x

x2 + 8y =32

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sin h x

cos h x

sec h x

cosec h x

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0

1

E-radius corresponding to < B is

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The slope of x-axis is

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0

undefined

1

The number of words that can be formed out of the letters of the word ASSASSINATION is

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Range of sinθis

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

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90°

100°

10°

120°

If A = {x/x is a positive integer and 4≤x<23}, then A=

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{1,2,3,4,5,6,7}

{4,5,6...........22}

{1,2,3,.........23}

{1,2,3,4,5}

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Diagonal matrix

Scalar matrix

Triangular matrix

Identity matrix

If distance between (3,b) and (0,0) is 3 then b = _______

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3

9

0

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4A - 3I

3A - 4I

A - I

None of these

The eccentricity of the conic 9x²- 16y²= 144 is

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4/5

5/4

4/3

3/4

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