Question # 1

Number of combination of zero or more things out of n different things

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nPn

nPr

nCr

2n

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If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=

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√7

√41

√19

√(2&7)

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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4(x³- 3x²)³+ c

3x²- 6x + c

The total cost of 2 apples and 3 oranges is $1.70, which of the following is true

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The cost of one apple

The cost of one orange

Both have equal cost per item

Cost of each single item can not be determined

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0

1

2

3

The function ø(x) is ananti derivativeof function f (x),x∈Df if

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ø′(x) =∫f(x)dx

ø(x) =∫f(x)dx

ø′(x) =f(x)

ø(x) =∫′(x)dx

In R, the additive inverse of a is

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0

1

-a

1/a

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A rational number

A natural number

An irrational number

An integer

Latus rectum = 4 x ______________

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focal distance of the vertex

Chord

Focus

1/2

The set of natural numbers is a subset of

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{1, 2, 3, .... 100}

The set of whole numbers

{2, 4, 6, 8, .....}

None of these

The synthetic division method is only used to divide a polynomial by

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quadratic equation

binomial

linear equation

monomial

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The square matrix A is skew-symmetric when At=

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-B

-C

-A

-D

If n is any positive integer then 2ⁿ> 2(n + 1) is true for all

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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

A point where two of its boundary lines intersect is called

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Corner point

Feasible point

Vertex

Feasible solution

Which one is not defined∀n∈Z+

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-n!

n!

(-n)!

n!+0!=n!+1

If sin x + sin²x = 1, then the value of Cos¹²x + 3cos¹⁰x + 3cos⁸x + cos⁶x + 2 cos⁴x + cos²x-2 is equal to

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0

1

2

sin²x

x = _________ is in the solution of 2x + 3 < 0

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0

2

-1

-2

The lotus of intersection of perpendicular tangents to the parabola y² = 4ax is:

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Axis of the parabola

Focal chord of the parabos

The tangent at vertex of the parabola

a directrix of the parabola

a chord passing through the focus of a parabola is called a:

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Focal chord

Latus rectum

Tangent

Directrix

The value of sin-1 24/25 is equal to

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csc-1 25/24

sec-1 24/25

2 tan-1 4/5

2cos-1 24/25

Which shape of the following objects are approximately parabolic ares?

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Light reflectors

Force

Weight of the pendul

None of these

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none of these

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