Question # 1

At a point 15 meters away from the base of a 15 meters high house, the angle of elevation of the top is

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90°

60°

30°

45°

A die is thrown 100 times. If getting an odd number is considered a success, the variance of the number of successes is

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50

25

10

100

i⁹ =

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i²

-1

1

i

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none of these

14 is not a

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Prime number

Whole number

Even number

Real number

(a-1)-1 =

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a-1

a

-a

None of above

If there is one-one correspondence between A and B, then we write.

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A = B

A⊆ B

A⊇ B

A ∼ B

The number of combinations of 10 different objects taken 8 objects at a time is

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90

45

55

50

Two matrices A and B are conformable for the product AB if

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Both A and B are square

Both A and B are symmetric

Number of rows of A = number of columns of B

Number of columns of A = number of rows of B

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The value of x, and y, when (x + iy)²= 5 + 4i

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X = 2, y = 1

X = -2, y = 1

X = 2, y = -1

X = 2, y = 2

sin(180° -θ)=

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cosθ

-cosθ

Tanθ

Sinθ

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Parallel to the plane

At right angles to the plane

Lies in the plane

Meet the plane obliquely

1 radian = _____

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60°

57.296°

57.2°

180°

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A^-

A^t

-A

A

Eight chairs are numbered 1 to 8. Two women and three men wish to occupy one chair each. First, the women choose the chairs from amongst the chairs marked 1 to 4 and then the men select the chairs from amongst the remaining. The number of possible arrangement is

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⁶C₃x ⁴C₂

⁴C₂x ⁴P₃

⁴P₂x ⁶P₃

None of these

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1

2

3

The distance of the point (-2,3) from x-axis is

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-2

2

3

1

A square matrix A = [aij] is lower triangular matrix when

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aij = 0 for all i<j

bij = 0

cij = 0

dij = 0

Three numbers are chosen random without replacement from {1, 2, 3, ...., 10}. the probability that minimum of the chosen numbering is 3 or their maximum is 7

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7 / 40

5 / 40

11 / 40

None of these

(0.90)^1/2is equal to

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0.99

0.90

0.80

0.88

If Z = (1,2), then Z^-1 =?

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(0.2, 0.4)

(-0.2 ,0.4)

(0.2,-0.4)

(-0.2,-0.4)

Which is an explicit function

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y = x²+ 2x - 1

x²+ xy + y²= 2

x²+ y²= xy + 2

All are

√x = ______ if is a prime number

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Rational no

Natural no

Irrational no

Complex no

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1⁰= ______

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360'

60"

60'

3600'

The graph of y> 0 is the upper - half of:

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y-axis

x-axis

1st and 4th quandrant

2nd and 3rd quadrant

n² - 1 divisible by 8 when n is

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an odd integer

an even integer

Irrational

Prime Number

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The triangle that does not have a right angle is called.

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Isosceles triangle

right angle triangle

equivalent triangle

oblique triangle

Cos^-1 12/13 =

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tan^-1 3/5

cot^-1 13/12

Sec^-1 13/12

sin^-1 5/13

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