Question # 1

The matrix A = [aij]1xn is a

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Vector

Rectangular matrix

Column vector

Square matrix

The sum of an indicated number of terms in a sequence is called

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sequence

progression

Series

Mean

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The direction cosines of any normal to the xy-plane are

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<1, 0, 0>

<0, 1, 0>

<1, 1, 0>

<0, 0, 1>

Two cards are drawn at random from a well shuffled pack of cards. The probability that at least one of them is a face card is

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3 / 17

5 / 17

7 / 17

9 / 17

Period of 3 sin x is ______

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In (x + iy), y is called as

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Imaginary part

Complex number

Real part

None of above

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-1

0

1

None of these

The sides of a right angled triangle are in A.P The ratio of sides is

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1:2:3

3:4:5

2:3:4

5:8:3

If sin (πcosθ) = cos (πsinθ), then which of the following is correct?

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A function whose range is just one element is called

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One-one function

Constant function

Onto function

Identity function

If x-2 and x-1 both are factors of x³-3x³+2x-4p, then P must equal to

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1

2

0

-2

xy= 2 is:

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a constant function

an identity function

an improper function

implicit function

Name the property used in 100 + 0 = 100

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Additive inverse

Multiplicative inverse

Additive identity

Multiplicative identity

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

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General term

Common ratio

Common difference

None of these

A = B if

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A is equivalent to B

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Does not exist because f is unbounded

Is not attained even though f is bounded

Is equal to 1

Is equal to -1

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0

1

2

4

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1

2

3

4

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The projections of a line segment on x, y, z axes are 12, 4, 3. The length and the direction cosines of the line segment are

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0

-1

1

not defined

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If Projvu = Projuv, then

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Uand vare parallel

|u|=|v|

Uandvre perpendicular

One ofuorv

Arithmetic mean between x - 3 and x + 5 is

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x + 1

x + 2

x + 3

x + 4

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x is a member of the set [-1, 0, 3, 5] y is a member of the set {-2, 1, 2, 4} which is possible?

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x - y = -6

x - y < -6

x - y > -6

None

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

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k = 2

k = ±2

k = -2

k ≠0

Cos-1(x)=

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cos x

x

tan-1(-x)

Sec-1 (1/x)

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