Question # 1

(x³-1/2x)⁶is

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15/16 x²

2/13 x²

17/7 x²

16/15 x²

The set {-1, 1} is closed under the binary operation of

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Addition

Multiplication

Subtraction

Division

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-a -b -c

1

0

-1

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5 / 12

3 / 8

5 / 8

7 / 4

The solution of the quadratic equation x2 -7x + 10=0, is

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2

5

2,5

7

∀x,y∈ R and x < 0, y < 0, which one is true

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xy < o

xy = o

xy > o

None of these

If sided of𝜟ABC are 16,20,and 33, then the value of the greatests angle to

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150𝜊 20'

132𝜊 35'

101𝜊 25'

160𝜊 50'

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A = C

A = B

B = C

None of these

The behavior of trigonometric function is called

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Continuity

Discontinuity

Periodicity

Smoothness

The zero vector is regarded to be parallel to

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Every vector

Is some cases

Both a,b

None

Period of 3 sin x is ______

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[i,j,k]

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0

2

1

-2

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30°

45°

60°

75°

The middle term in the expansion of (a +x)¹²is

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7th

8th

9th

6th

If a is any real number and a = a is called

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symmetric property

Trichotomy Properties

Transitive Property

Reflexive Properties

The 31 term of the A.P 5,2,-1.....is

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-82

82

85

-85

The square root of 2i - 20i is

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±(5 - 2i)

±(5+ 2i)

(5 - 2i)

None of these

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The set of all positive even integers is

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Not a group

A group w.r.t subtraction

A group w.r.t division

A group w.r.t multiplication

The vertex of the parabola (xsin a -ycos a)2 =4a(xcos a +ysin a) lies at

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(acos a,asin a)

(a,0)

(cos a,sin a)

(0,0)

Cos (α+β) - cos (α-β) =

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-2 sinα sinβ

2 sinαcosβ

-2 sinαcosα

4 sinα cosβ

The series obtained by adding the terms of an arithmetic sequence is called the

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Infinite series

Harmonic series

Geometric series

Arithmetic series

i² =

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1

2

-1

0

What is the conjugate of -7 -2i?

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-7 + 2i

7 + 2i

7 -2i

None of these

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The equation of vertical asymptotes of y = cos ecx is

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x = 0

y = 0

x =∞

y =∞

The value of sin²20° + sin²70° is equal to

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1

2

-1

1/2

The number of triplets (x, y, z) satisfying sin^-1x +cos^-1y + sin^-1z = 2π is

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0

2

1

Infinite

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If A, G, H are the arithmetic, geometric and harmonic means between a and b respectively then A, G, H are in

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A. P.

G. P.

H. P.

None of these

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