Question # 1

If k2x2 +2hxy- 4y2 =0 represents two perpendicular lines then

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k = 2

k = ±2

k = -2

k ≠0

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an A.P.

a G.P.

a H.P.

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

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The exponent of x in 10th term in the expansion of (a+x)n

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10

12

11

9

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π

2π

π/2

None of these

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Associative property of addition

Associative property of multiplication

Commutative property of addition

Commutative property of multiplication

Range of secθis

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Z - {x | -1 < x < 1}

W - {x | -1 < x < 1}

R - {x | -1 < x < 1}

R

I f the focus is F ( 0,-a) and directrix is the line v=a, then equation of the parabola is:

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x² = 4ay

y² = 4ax

y² = -4ax

x² = 4ax

If a (p + q)²+ bpq +c = 0 and a (p + r)²+ 2 bpr + c = 0, then qr equals

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p²+ c/a

p²+ a/c

p²+ c/a

p²- c/a

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Principle of equality of fractions

Rule for product of fractions

Golden rule for fractions

Rule for quotient of fractions

The area of sector with central angle of 1 radians in a circular region whose radius is 2 m is

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

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x =0, y =4

x = -1, y = 2

x = 2, y = 3

x = 3, y = 4

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a sec(ax + b) + c

- a sec(ax + b) + c

The set {x|x∈N∧x-4=0} in tabular form is

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{-4}

{0}

{}

None of these

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Write the first four terms of the sequence if a_n= (-1)ⁿn²

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-1, 4, -9, 16

1, -4, 9, 16

1, 4, 9, 16

None of these

The series obtained by adding the terms of a geometric sequence is called

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Infinite series

Arithmetic series

Geometric series

Harmonic series

The standard parabolic form of the equation f(x) = x² +4 x +1 is

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x(x+4)+1

(x+2)²-3

(x+4)³ + 9

x(x-2)²+1

The centre fo the circle x²+ y²+ 12x -10 = 0 is

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(12, -10)

(6, -5)

(-12, 10)

(-6, 5)

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n!

0!

1

None of these

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If t is the parameter for one end of a focal chord of the parabola y²= 4ax, then its length is

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A complex number

A rational number

A natural number

An irrational number

For trival solution |A| is

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A

|A| is non zero

A = 0

None of these

The coordinates of the point that divides the join of A(-6,3) and B(5, -2) in the ratio 2:3 externally are

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c = 0

c = -1

c = -2

c = 1

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Range of cos x is ______

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[-1, 1]

R

Negative real numbers

R - { x | - 1 < x < 1}

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(3, 1, -2)

(3, -2, 1)

(2, -1, 3)

(-1, -2, -3)

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