Question # 1

Two sets A and B are said to be disjoint if

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0

1

-1

None of these

Minor of an element a_ijis denoted by

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M_ij

A_ij

|A|

None of these

cos(a +β)-cos(a-β) = _______;

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2cosa cosβ

2sina cosβ

-25 in a cosβ

-2sin a sinβ

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sin 2x + c

-sin 2x + c

In any triangle ABC,with usual notationαsinβ =____;

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b sinα

bsinβ

αsinα

None of these

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If f (x)=a0 +a1x+a2x2+a3x3-----+0n-1xn-1+anxn then f(n) (x) is equal to

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n!

ann!

0

an

The set of points {(x,y)|y = f(x),∀x∈} is called

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Relation

Graph of f

Function

All are correct

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An experiment yields 3 mutually exclusive and exhaustive events A, B, C, if P(A) =2 and P(B) = 3. then P(C) =

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1 / 11

2 / 11

3 / 11

6 / 11

The distance of point P(x,y) from focus in a parabola

y² =4ax, is:

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2a

a

x + a

x-a

A and B be two square matrices and if their inverse exist, the (AB)^-1=

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A^-1B^-1

AB^-1

A^-1B

B^-1A^-1

The constant distance of all points of the circle from its centre is called the

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radius of the circle

secant of the circle

chord of the circle

diameter of the circle

If you are looking a high point from the ground, then the angle formed is

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Angle of elevation

Angle of depression

Right angle

Horizon

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

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Rational

Irrational

Complex

None of these

The line y = 2 x + c is a tangent to the parabola y²= 16 x if c equals

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-2

-1

0

2

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1

0

5

2

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The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

Which of the following has the same value as i¹¹³?

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i

-1

-i

1

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sec h x = ________

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sin (sin^-1(1/2))=

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0

2

∞

1/2

The roots of the equation will be irrational if b²- 4ac is

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Positive and perfect square

Positive but not a perfect square

Negative

Zero

The parabola y²= x is symmetric about

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x-axis

y-axis

Both x and y-axis

The line y = x

The Principal value of sin-1 (-1/1/2)

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π/2

-π/2

π

-π

The function f(x) =|x| is a/an_______function

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Even

Odd

Both even as well as odd

Neither even nor odd

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