Question # 1

The fifth term of the sequence a_n = 3n - 2 is

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3

-3

13

-13

Complex roots of real quadratic equation occur in

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Nilpotent matrix

Singular matrix

Non singular matrix

Diagonal matrix

The general solution of the differential equation dy/dx = log x is

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Y = -x log x- x +c

Y = x log x + x²

Y = x log x -x +c

Y= 2x log x + 2x +c

P(x) = 2x⁴ -3x³ +2x-1 is polynomial of degree

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1

2

3

4

The vertices of the ellipse x² + 4y² = 16 are

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(±,4,0)

(0,±,4)

(± 2,0)

(0,± 2)

AreCot √3 =?

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π/2

π

2π

π/6

A point of a solution region where two of its boundary lines intersect is called

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Boundary

Inequality

Half plane

Vertex

If α and β be irrational roots of a quadratic equation, then

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α = b/a and β = ca

α = a/b and β = -c/a

α² + β² = 1

α = -b/a and β= c/a

F(x) = xx decreases in the interval

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(0,e)

(0.1)

(-∞.0)

None

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

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-x

does not exist

1/x

0

Two dice are rolled The number of possible out come in which at least one die shows 2 is?

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5

12

11

7

In the function v = 4/3 π r³, V is a function of

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3/4

r

v

π

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

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b

-b

-a

(a - b)²

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