Question # 1

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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The range of the principle cos function is

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2x = 3 is a conditional equation it is true for

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2

3

3/2

2/3

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0

-1

1

2

If in a set of real no a is multiplicative identity then

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a,a = a²

a,a = 1

a,a = 0

None of these

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all are correct

In the interval 0≤ x ≤ π, the sine is

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Not a function

Not defined

Infinity

Not one-to-one function

A circle drawn inside a triangle and touching its sides is called

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In-circle

Circum circle

Escribed circle

None of these

The sum if 1,3,5,7,9........ up to 20 terms is

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400

472

563

264

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

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quadratic equation

binomial

linear equation

monomial

Name the property used in a (b-c) = ab - ac

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commutative property of multiplication

distributive property of multiplication

associative property of multiplication

multiplicative inverse

If one root of the equation ix²- 2(i + 1) x +(2 - i) = 0 is 2 - i, then the other root is

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-i

2 + i

i

2 - i

3x + 4 < 0 is

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not inequality

equation

identity

inequality

A line segment whose end points lie on a circle is called

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the secant of the circle

the arc of the circle

the chord of the circle

the circumference of the circle

In-radius is denoted by

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r

η

r2

R

The roots of px2 - (p-q)x-q=0 are

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equal

Irrational

Rational

Imaginary

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sin h x

cos h x

tan h x

cot h x

If n € N , then n(n+3) is always

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Multiple of 3

Multiple of 6

odd

even

The domain of an infinite sequence is a

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Set of natural numbers

R

Subset of N

None of the above

Tan 2θ=

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The distance of the point (2,3) from y-axis is

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2

3

5

For any positive integer n

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ABn = Bn A ⇔ AB = BA

ABn = Bn A⇔ A,B are square matrices and AB = BA

ABn = BnA⇔ A + B

ABn = BnA ⇔ A and B are square matries

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

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A.P.

G. P.

H. P.

None of these

The element range of sequence are called

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Series

progression

Members

Terms

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Every term of a G.P. is positive and also every term is the sum of two preceding terms. Then the common ratio of the G.P. is

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A function f(x) is said to be the periodic function if for all x in the domain of f, there exists a smallest positive number p such the f(x + p) = ______

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f(p)

f(x)

f(o)

None of these

In a triangle if a > 45°,β > 30° then y cannot be

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90°

100°

10°

120°

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a cot(ax + b) + c

- a cot(ax + b) + c

The angle of elevation of the tops of two towers at the middle point of the line joining the foots of the tower are 60^οand 30^οrespectively. The the ratio of the heghts of the tower is

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2 : 1

3 : 1

1 : 2

1 : 3

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