Question # 1

If G is a G.M between a and b then a,G,b are in

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A.P

H.P

G.P

None of these

Which of the following is an identity matrix?

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none of these

The term involving x4 the expansion (3-2x)7 is

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217 x4

15120x4

313x4

-25x4

An even function is symmetric about the line

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y = x

x = 0

y = -x

y = 0

1,1/3,1/5,1/7,1/9..... is a

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geometric sequence

finite sequence

infinite sequence

arithmetic series

Product of any n consecutive positive integers is divisible by

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n

√n

n!

None

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Singular

Non-singular

Adjoint

None of above

2x³+ 3x + 9 is a ______

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Polynomial of degree 3

Quadratic equation

Cubic equation

Polynomial of degree 2

The area of the circle centred at (1,2) and passing through (4,6) is

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30 πsq.units

5π sq.units

15π sq.units

25π sq.units

Any point, where f is neither increasing nor decreasing and f(x) = 0 at that point, is called a

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Minimum

Maximum

Stationary point

Constant point

1st four terms of the expansion (1-x)^-2are

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1 + 2x + 3x²+ 4x³

3x²+ 2x + 1

1 + 3x + 4x²+ 5x³

None of these

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-1

0

1

None of these

The point on y²= 4ax nearest to the focus has its abciassae equal to

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-a

a

a/2

0

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A(α) - A(β)

A(α) + A(β)

A(α-β)

A(α+β)

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(-6,4)

(-3,2)

(6,-4)

(3, -2)

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The law of sines

The law of consines

The law of tangents

None of these

If A and B are two sets then intersection of A and B is denoted by

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3j . k x i

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0

1

3

9

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Name the property used in 100 + 0 = 100

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Additive inverse

Multiplicative inverse

Additive identity

Multiplicative identity

The domain of an infinite sequence is a

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Set of natural numbers

R

Subset of N

None of the above

Latus rectum = 4 x ______________

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focal distance of the vertex

Chord

Focus

1/2

The equation of the parabola with directirx x = 2 and the axis y = 0 is

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y²= 8x

y²= -8x

y²= 4x

y²= -4x

If n is any positive integer then 3 + 6 + 9 + ....+ 3n = ______

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The element range of sequence are called

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Series

progression

Members

Terms

2.333....is a

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Irrational no

Complex no

Rational no

None of these

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In quadratic equation y=ax³+bx+c, if b and c are both zero then the graph is

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Symmetric w.r.t.y-axis

Symmetric w.r.t.x-axis

Straight Line

Circle

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all are correct

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