Question # 1

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15

15 i

-15 i

-15

The set {1, -1, i, -i}

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Form a group w.r.t addition

Form a group w.r.t multiplication

Does not form a group w.r.t multiplication

Not closed under multiplication

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1/3

1

3

None of these

i =

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√1

√2

√-2

√-1

The last term of (1+2x)-2

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(-1)-2 (2x)-2

(-1)-4(-2x)-2

(-1)-3(2x)-3

Does not exist

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1

-1

(a,0) x (c,0) =

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(0,ac)

(ac,0)

(0,0)

(a,c)

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

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6

3

4

8

The maximum value of the quadratic function f(x) = 2x2-4x+7,is

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3

5

-3

-5

If the pth, qth, and rth terms of an A.P. are in G.P:., then the common ratio of the G.P. is

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Reflexive property

Symmetric property

Transitive property

Additive property

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[0,1[

[0, 1]

]0, 1[

None of these

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-1

0

1

undefined

The slope of x-axis is

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0

undefined

1

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The slope of the normal at the point (at², 2at) of the parabola y²= 4ax is

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1/t

t

-t

-1/t

The distance of the point (2,3) from origin is

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5

2

3

A triangle has six

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side

elements

angle

tangents

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If A and B are two sets then intersection of A and B is denoted by

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sin h x = ___________

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Range of 3 sin x is ______

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[ -3, 3]

[-1, 1]

R

None of these

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0

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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cosec x + c

-cosec x + c

-sec x + c

sec x + c

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1

5

7

9

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none of these

Range of sinθis

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In how many ways can 5 persons be seated at a round table

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5!

4!

3!

120

Q∪ Q' =

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Q

Q'

N

R

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