Question # 1

Domain of cosecθis

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For≥ -2 , 1+3+5+......+(2n+5)

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(n+2)²

(n-2)²

2n+1

(n+3)²

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The lotus of intersection of perpendicular tangents to the parabola y² = 4ax is:

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Axis of the parabola

Focal chord of the parabos

The tangent at vertex of the parabola

a directrix of the parabola

Name the property used in 4 x (5 x 8) = ( 4 x 5) x 8

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Associative property of addition

Associative property of multiplication

Additive identity

Multiplicative identity

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pth term of an H.P. is qr and qth term is pr then the rth term of the H.P. is

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pqr

1

pq

pqr²

The horizontal distance between the two towers is 60 m. the angular elevation of the top of the taller tower as seen from the top of the shorter one is 30°. If the height of the taller tower is 150 m, the height of the shorter one is

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116 m

200 m

216 m

None of these

Three consecutive terms of a progression are 30, 24, 20. The next terms of the progression is

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The sum of first twenty odd integers in A.P is

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400

397

404

408

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(A∪B)∪C= --------------------------

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A∩B(B∪C)

A∪(B∪C)

A∪(B∩C)

None of these

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2x

2

If n is any positive integer then n²> n + 3 for

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The graph of a linear function is

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a circle

triangle

a straight line

none of these

The point where the axis meets the parabola is called

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Directrix

Foucu

Chord

Vertix

n different objects can be arranged taken all at a time in ______

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(n + 1)! ways

(n - 1)! ways

n! ways

n ways

If one root of the equation ix²- 2(i + 1) x +(2 - i) = 0 is 2 - i, then the other root is

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-i

2 + i

i

2 - i

f(x) = x³is:

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an odd function

an even function

an implicit function

a quadratic funtion

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0

1

-1

none of these

In-radius is denoted by

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r

η

r2

R

The difference of two consecutive terms of an A.P is called the

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Common difference

Common ratio

Geometric series

Geometric mean

Which of the following is a scalar.

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force

frequency

weight

acceleration

(x + 2)²= x²+ 4x + 4 is

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A linear equation

A cubic equation

A quadratic equation

None

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quadrant I

quadrant II

quadrant III

quadrant IV

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tan (π-θ) = ______

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- sinθ

- tanθ

- cosθ

- cotθ

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2

4

8

12

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Diagonal matrix

Scalar matrix

Triangular matrix

Identity matrix

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-a -b -c

1

0

-1

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