Question # 1

If u =[3,-4],then modulus of uis:

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5

5i

-5

√5

x =r cosθ,y= sinθ are the parametric equations of

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Circle

Ellipse

Parabola

Hyoerbola

The set of all points in the plane that are equally distant from a fixed point to called a

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Parabola

ellipse

Hyperbola

Circle

A fraction in which the degree of the numerator is less than the degree of the denominator is called

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Polynomial

Equation

Proper fraction

Improper fraction

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For f(x) = x² + px +1, if f(3) = 3 then P =

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3/7

-2/5

-7/5

-7/3

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

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- x

Infinite set

Φ

{-4,4}

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The zero vector is regarded to be parallel to

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Every vector

Is some cases

Both a,b

None

The transpose of a column matrix is a ______

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Zero matrix

Diagonal matrix

Column matrix

Row matrix

The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

If ab > 0 and a < 0, which of the following is negative?

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b

-b

-a

(a - b)²

Which of the following is not defined?

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Arcsin 1/9

ArcCos (-4/3)

Arctan 11/12

Arccot (-4)

What is the domain of y = Cot^-1 x?

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Set of irrational numbers only

Set of all real numbers

Set of integers only

Set of complex numbers only

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

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4

8

14

7

8 > t then

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(s -t) ²>(t -8)²

(s -t) ²<(t -8)²

(s -t) ²=(t -8)²

None

Sin 720° = ________

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1

0

2

1/2

If y = sin(ax + b) then fourth derivative of y with respect to x=

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a⁴ cos (ax + b)

a⁴ sin (ax + b)

-a⁴ sin(ax +b)

a4 tan (ax + b)

If i,m,n are the direction cosines of a vector O̅P̅ then

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I² + m² + n² =0

I² - m² + n² =1

I² + m² + n² =1

I² + m² - n² =0

If P(E) is the probability that can event will occur then P(E)=

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1

0.5

2

0

Given eight points in a plane no three of which are collinear how many lines do the points determine?

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16

64

28

36

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