Question # 1

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If a > 0, b > 0, c > 0, then the roots of the equation ax²+ bx + c = 0 are

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Real and negative

Non-real with negative real parts

Real and positive

Nothing can be said

When a selection of object is made without paying regard to the order of selection, it is called

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Sequence

Series

Combination

Permutation

For each natural number n, n (n+1) is

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an even

an odd

multiple of 3

Irrational

For graphing a linear inequality, solid line is drawn if the inequality involves the symbols:

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> or <

= or≠

= or >

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24 can be written as a product of

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Odd factors

Even factors

Whole factors

Prime factors

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If (0, 0) and (-1, 0) are end points of a diameter, then the equation of the circle is

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If for the matrix A, A⁵= I, then A^-1=

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A²

A³

A

None of above

The distance between the points A(3,1) and B(-2,-4) is

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5

25

10

The set {1,-1, i, -i} form a group under

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Addition

Multiplication

Subtraction

None

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b = c

a = c

b = 0

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real number

complex number

rational number

irrational number

The graph of the linear equation of the form ax =by = c is a line which divided the plane into:

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Two similar regions

Two disjoint regions

Four equal parts

One region

In any triangle ABC,with usual notationαsinβ =____;

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b sinα

bsinβ

αsinα

None of these

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One-one but not onto

One-one and onto

Onto but not one-one

Neither one-one nor onto

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If y = eax sin bx and y2 - 2ay1 + (a2+b2) y=0 the for what values of a and b we have y2+10y1+34y =0

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a = -10,b=34

a=-5,b=3

a=5,b=3

a=10,b=34

A die is thrown 100 times. If getting an odd number is considered a success, the variance of the number of successes is

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50

25

10

100

Under multiplication, solution set of is

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Groupoid

Abelian group

Semi group

All of these

The solution set of x < 4 is

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-∞< x < 4

-∞> x > 4

-∞< x < 2

-∞> x > 2

A number A is said to be the A.M between the two numbers a and b if a, A, b are in

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A.M

A.P

G.P

G.M

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Set of whole number

Rational Numbers

Complex numbers

Whole numbers

The value of sin [ arc cos (-1/2)] is

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If cos (2 sin-1 x) = 1/9 , then what is the value of x?

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1/3

-2/3

2/3

2/3 , -2/3

The set Q

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Forms a group under addition

Does not form a group

Contains no additive indentity

Contains no additive inverse

QUQ, =

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N

R

W

Z

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The minimum value of the quadratic function f(x) = 5 x 2-11,is

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7

-7

6

-11

If a (p + q)²+ bpq +c = 0 and a (p + r)²+ 2 bpr + c = 0, then qr equals

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p²+ c/a

p²+ a/c

p²+ c/a

p²- c/a

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