Question # 1

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Arithmetic mean between a and b is

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If n is add the expansion (a + x)ⁿhas middle terms

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2

3

4

5

If b²- 4ac is positive then the roots of the equation are

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Real

Imaginary

Positive

Negative

If 6th term of a series in A.P, is -2 and 8th term is -8, the first term of the serie is

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13

-13

18

-10

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360°

180°

90°

None of these

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x = 3

x = 1/5

x = 0

None of these

Range of cosec x is ______

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{-1, 1}

R

Negative real numbers

R - { x | - 1 < x < 1}

nCn-r is equal to

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n!

n-1Cr

nCr

None of these

A conditional "if p then q" is denoted by

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The square root of every incomplete square is an

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Rational numbers

Even numbers

odd numbers

Irrational numbers

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I f the focus is F ( 0,-a) and directrix is the line v=a, then equation of the parabola is:

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x² = 4ay

y² = 4ax

y² = -4ax

x² = 4ax

1/2,1/3,1/4,1/5.........is

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a geometric sec

an arithmetric series

finite sequence

an infinite sequece

The constant distance of all points of the circle from its centre is called the

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Radius of the circle

Secant of the circle

Chord of the circle

Diameter of the circle

The set of even prime numbers is

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(2,4,6,8,10}

{2,4,6,8,10,12}

{1,3,5,7,9}

{2}

An open sentence formed by using the sign of equality "=" is called

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Equation

In equation

True sentence

False sentence

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The 6th term of an arithmetic sequence whose first term is 3 and common difference in zero is

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18

6

3

0

The position vector of a point (x, y) in xy plane is

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none of these

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Find a if 1 is a root of the equation x²+ ax + 2 = 0

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3

-3

2

0

The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

The towers each 120 meters high are 800 meters apart. The measure of the angle of elevation from the base of one tower to the top of the other is

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12^𝜊

9^𝜊

7^𝜊

-120^𝜊

The length of perpendicular from (3,1) to 4x +3y +20 =0 is

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6

7

3

8

If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =

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1

12

5

29

Multiplicative inverse of 0 is

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0

1

±1

Does not exist

The symbol of irrational is

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W

N

Q

Q'

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If the exponent in the binomial expansion is 6, then the middle term is

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2nd term

3rd term

4th term

5th term

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