Question # 1

The value of n, when ⁿP₂= 20 is

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3

4

6

5

The square of the distance between two points P(x₁, y₁) and Q(x₂, y₂) is

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√-1 b=

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b

2

2b

None of these

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An empty set

Universal set

A singleton set

None of these

A function f is said to be an even if f(-x) =

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0

1

f(x)

-f(x)

If x < y, 2x = A, and 2y = B, then

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A = B

A < B

A < x

B < y

The transpose of a zero matrix is a ______

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Column matrix

Zero matrix

Row matrix

Scalar matrix

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

∀a,b, c ε R ac = bc ⇒ a = b, c ≠ 0 is a

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Symmetric property

Cancellation property w.r.t multiplication

Reflexive property

Transitive property

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

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2

-5

-3

In order of A is m x n and order of B is n x p then order of AB is

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m x m

n x n

m x p

p x m

The 8th term of (1+2x) ^-1/2is

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-221/16 x⁷

-225/18 x⁷

-407/9 x³

-429/16 x⁷

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The probability that a slip of numbers divisible by 4 is picked from the slips of number 1,2,3,4,......10 is

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1/5

2/5

1/10

3/10

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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0

1

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Sum of n terms of a geometric series if | r | < 1 is

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6 is

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A prime integer

An irrational number

A rational number

An odd integer

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

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Addition

Multiplication

Subtraction

Division

e-radii are denoted by

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η

r2

r3

All of these

Name the property used in 4.1 + (-4.1) = 0

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Additive inverse

Multiplication inverse

Additive identity

Multiplication identity

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2

4

8

16

P∉ A means

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Pis subset of A

Pis an element of A

P does not belongs to A

A does not element of P

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2x cos x2

-2xcosxsinx

2x Sin x2

-Sin x2

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0

-1-w²

How many arrangements of the letters of the word MI SSI PPI, taken all together can be made?

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