Question # 1

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

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Additive inverse

Multiplication inverse

Additive identity

Multiplication identity

(1 - x)³= ______

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1 + 3x + 3x²+ x³

1 + x + x²+ x³

1 - x + x²- x³

1 - 3x + 3x²- x³

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0

2

4/3

5/3

Z is the set of integers, (z, *) is a group with a * b = a + b + 1, a, b∈G. then inverse of a is

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-a

a + 1

-2 -a

None of these

If A and B are skew-symmetric then (AB)t is

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At Bt

AB

-AB

BA

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None of these

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[0, 0, 0]

[1, 0, 0]

[0, 1, 0]

[0, 0, 1]

∛8.6 is approximately equal to

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2.488

2.48

2.0488

2.05

If the sum of co-efficient in the expansion of (a+b)ⁿis 4096, then the greatest co-efficient in the expansion is

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1594

792

924

2924

{1, 2, 3} is _____

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an infinite set

A finite set

A singleton set

Universal set

There may be ______ feasible solution in the feasible region

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Infinite

Finite

Defined

None of above

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f(x) = x is

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trigonometric function

exponential function

quadratic function

identify function

∀a,b ε R, ab = be is a

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Commutative law of multiplication

Closure law of multiplication

Associative law of multiplication

Multiplicative identity

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Reflexive property

Symmetric property

Transitive property

Additive property

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For trival solution |A| is

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A

|A| is non zero

A = 0

None of these

The multiplicative inverse of (a,b) is

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Derivative of strictly increasing function is always

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Zero

Positive

Negative

Both (A) and (B)

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none of these

For two events A and B if P(A) = P (A/B) = 1/4 and P(B/A) = 1/2, then

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A is sub-event of B

A and B are mutually exclusive

A and B are independent and P(A/B) = 3/4

None of these

The transport of a null matrix is

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Row matrix

Column matrix

Square matrix

Null matrix

graph of sine function is bounded between lines

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y± 1 = 0

x± 1 = 0

x± y - 0

None of these

The equations of the line thro' the point (2, 3, -5) and equally inclined to the axis are

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if A = (x/x€ Q˄ 0 < x < 1}, the A is

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Infinite set

Finite set

Set of rational numbers

Set of real numbers

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The set of first elements of the ordered pairs in a relation is called its

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domain

range

relation

function

The identity element of a set X with respect to intersection in P(x) is

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X

Does not exist

∅

None of these

There are two middle terms in the expansion of (a+x)n if n is

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Even +ve integer

+ve integer

Odd +ve integer

All

If the vector 2i + 4j - 7k and 2i + 6j + xk are perpendicular then x = ?

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0

2

4

7

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