Question # 1

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(x + 2)²= x²+ 4x + 4 is

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A linear equation

A cubic equation

A quadratic equation

None

In the expansion of (a + x)ⁿthe general term T_{r + 1}is

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The equation of the line perpendicular to x- axis and passing through (-5,3) is

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y -3 =0

x+ 3 =0

y- 3 =∞

x +5 =0

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A²- 5A + 7I = 1

2A²- 3A + 7I = 0

A²- 5A + I = 0

A²- 5A + 7I = 0

Period of tan x is ______

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For all positive integral value of n,3ⁿ< n! , when

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n> 6

n< 6

n<11

n>11

The first three terms in the expansion of (1 - x)^-2are

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1 - 2x + 3x²

1 - 2x - 3x²

1 + 2x + 3x²

-2 - 2x +3x²

(A∩Bc)c= -------------------------

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Ac∪Bc

Ac∪B

Ac∩B

None of these

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For any equilateral r :R :η :r1 :r2 :r3 =

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1:2:3:4:5

1:2:3:3:3

1:2:4:4:4

2:1 :2 :2 :2

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none of these

e-radii are denoted by

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η

r2

r3

All of these

Domain of cosθis

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Set of odd numbers

Set of integers

Set of real numbers

Set of complex numbers

IfΔABC is right, law of cosine reduce to

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Law of sine

Law of tangent

Phthogorous theorem

Hero's formula

If f(√x)=sin x , then f′(x) =______;

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2xcosx2

cosx2

cos√x

None of these

The set X is

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Proper Subset of X

Not A subset of X

Improper Subset of X

None of these

Zero is

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An irrational number

A rational number

A negative integer

A positive number

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none of these

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Cos (α+β) - cos (α-β) =

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-2 sinα sinβ

2 sinαcosβ

-2 sinαcosα

4 sinα cosβ

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Symmetric

Skew-symmetric

Hermitian

Skew hermitian

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4

3

2

1

If A = {x / x ∈ R ∧ x² - 16 = 0} then A =

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- x

Infinite set

Φ

{-4,4}

Sin 270° = ______

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-1

0

1

Undefined

Let S_ndenote the sum of the first n terms of an A.P. If S_2n= 3 S_n: S_nis equal to

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4

6

8

10

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0

3

9

-3

The vertex of the equation y² = 4ax is:

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(2, -2)

(1,1)

(0 , 0)

(2 , 2)

Every prime number is also

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Rational number

Even number

Irrational number

Multiple of two numbers

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