Question # 1

For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

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sin h x

cos h x

sec h x

cosec h x

5x³+ 3x - is a ______

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Polynomial of degree 3

Polynomial of degree 2

Polynomial of degree 1

Polynomial of degree 0

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None of these

If ∀a,b ε R,then a +b ε R is a property

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Closure law of addition

Associative law of addition

Additive inverse

Additive identity

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0

-1

1/2

1

If ax²+ bx + x = 0 is satisfied by every value of x, then

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b = 0, c = 0

c = 0

b = 0

a = b = c = 0

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0

1

What is the number of elements of the power set of { }

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0

1

2

3

The formula an = arn-1represents

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nth term of G.P

Sum of the first n terms

G.M between a and b

None of these

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The number of proper subset of A ={a.b.c.d} is

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3

6

8

15

If the elevation of the sun is 30°, then the length of the shadow cast by a tower of 150 ft height is

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Which one is not defined∀n∈Z+

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-n!

n!

(-n)!

n!+0!=n!+1

The element range of sequence are called

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Series

progression

Members

Terms

The transport of a null matrix is

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Row matrix

Column matrix

Square matrix

Null matrix

(A ∩ B)c =

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A∩ B

(A ∪ B)c

Ac∪Bc

Φ

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1

-1

0

I

ax2 +2hxy +by2 +2gx +2fy +c =0 may represent an ellipse if

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h2 -ab <0

h2 -ab≠ 0

h2 -ab =0

h2 -ab >0

i =

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√1

√2

√-2

√-1

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The line 3x - 4y = 0

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Is a tangent to the circle x²+ y²= 25

Is a normal to the circle x²+ y²=25

Does not meet the circle x²+ y²= 25

Does not pass thro' the origin

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a₁+ a₂

a²₁+ a²₂

Which is a proper rational fraction

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Five engineering, four mathematics, two chemistry books are placed on a table at random.The probability that the books of each kind are all together is

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Sec 30° = ______

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none of these

The minimum value of the quadratic function f(x) = x2 +6x -2, is

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11

6

-11

13

The domain of y =√(x^2-9) is

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R

(0 , +∞)

(-∞ , -3 )∪ (3 , +∞)

(0 ,∞)

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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