Question # 1

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0

1

13

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Diagonal matrix

Scalar matrix

Triangular matrix

Identity matrix

f(x) = 3x/x² + 1 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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A positive integer

A negative integer

A natural number

An irrational number

The only function which is both even and odd is

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f(x) =α

f(x) = x

f(x) =0

Both A & B

If one root of 5x2 + 13x + k = 0 be the reciprocal of the other root the value of k is

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0

2

1

5

A die is thrown, the probability that the dots on the top are prime numbers or odd numbers is

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1/2

2/3

1/3

2/5

A = [3] is a/an

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Square matrix

Scalar matrix

Diagonal matrix

Identity matrix

1 + 2 + 3 + ...... + n = ______

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The equation x2+ y2- 8x+ 6y+ 25= 0 represents

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A circle

A pair of straight lines

A point

None of these

The line y= 4x +c touches the hyperbola x2- y2 =1 if and only if

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c =±√2

c =0

c=±√17

c=±√15

What is the domain of y= Sin^-1 x?

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-1 ≤ x ≤1

1 ≤ x ≤ 1

0 ≤ x ≤ π

-π/2 ≤ x ≤ π/2

The set {1, -1, i, -i}, form a group under

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addition

multiplication

subtraction

None

Which of the following is solution of Tan² x = 1/3

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7π/6

5π/6

π/6

All

The direction cosines of y-axis are

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1,0,0

0,1,0

0,0,1

1,1,1

Area of ΔABC=

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ab sin α

1/2 ab sin α

1/2 ac Sin γ

1/2 ac Sin β

The complement of set A relative to universal set U is the set

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X

φ

Universal set

The mid point of the line joining (=1,-3) to(3,-5) is

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(1, 1)

(1,-1)

(2, -8)

(1, -4)

Which is not included in the domain of Cos^-1 x

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0

1

-1

2

AreCot √3 =?

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π/2

π

2π

π/6

The end points of the major axis of the ellipse are called its

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foci

Vertices

Co-vertices

eccentricity

If f(x) : A → B and g (x) : A → B then Dom [f(x) + g(x)] is

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Dom f(x) ∩ Dom g (x)

Dom f(x) ∪ Dom g(x)

[Domf(x)]² - [Dom g(x)]²

[Dom g(x)]²-[Domf(x)]²

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