Question # 1

The value of sin^-1 5/13 is equal to

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Cos 5/13

Tan^-1 5/12

cos^-15/12

2 cos^-14/5

Second derivative of y = x⁹+ 10x²+ 2x - 1 at x = 0 is

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10

20

12

1

tanθ/2

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none of these

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A²- 5A + 7I = 1

2A²- 3A + 7I = 0

A²- 5A + I = 0

A²- 5A + 7I = 0

Which of the vectors have opposite direction?

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If B⊆ A, then complement of B in A is = -----------------------

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A-B

A∩B

B-A

A∪B

When the angle between the ground and the sun is 30^𝜊,flag pole costss a shadow of 40 mg long. the height of the top of the flag is

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25m

23m

12m

29m

If n(A) = n then n(P(A)) is

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2n

n²

n/2

2ⁿ

{1, 2, 3} is _____

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an infinite set

A finite set

A singleton set

Universal set

By expressing sin 125° in terms of trigonometrical ratios, answer will be

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sin 65° = 0.9128

sin 55° = 0.8192

sin 70° = 0.5384

sin 72° = 0.1982

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For each even natural number n (n²-1) is divisible by

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6

3

4

8

sin 540° =

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0

1

2

3

If f(x) = x²- x then f(-2) is

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4

6

2

0

For different values of k equation 4x+5y =k represents

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Parallel lines

Lines parallel to x -axis

Perpendicular lines

Lines parallel to y -axis

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none of these

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 solution set of x < 4 is

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-∞< x < 4

-∞> x > 4

-∞< x < 2

-∞> x > 2

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0

1

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0

2

4/3

5/3

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(51)⁴is equal to

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7065201

8065201

6765201

6565201

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The slope of x-axis is

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0

undefined

1

The equation |x + 4| = x has solution

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x = -2

x = 2

x = -4

x = 4

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3x + 4 < 0 is

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inequality

equation

identity

not inequality

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1/8

1/2

1/4

1/6

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