Maths-

#### The polar equation of the circle of radius 5 and touching the initial line at the pole is

Maths-General

#### Answer:The correct answer is:

## Book A Free Demo

+91

Grade*

Select Grade

### Related Questions to study

maths-

#### For the circle centre and radius are

#### For the circle centre and radius are

maths-General

maths-

#### The circle with centre at and radius 2 is

#### The circle with centre at and radius 2 is

maths-General

maths-

#### The conic with length of latus rectum 6 and eccentricity is

#### The conic with length of latus rectum 6 and eccentricity is

maths-General

maths-

#### The equation of the directrix of the conic is

#### The equation of the directrix of the conic is

maths-General

maths-

#### Statement-I : If

Statement-II :If

Which of the above statements is true

#### Statement-I : If

Statement-II :If

Which of the above statements is true

maths-General

maths-

#### If α,β then the equation with roots will be

#### If α,β then the equation with roots will be

maths-General

maths-

#### If be that roots where , such that and then the number of integral solutions of λ is

#### If be that roots where , such that and then the number of integral solutions of λ is

maths-General

maths-

#### If b > a , then the equation, (x - a) (x - b) - 1 = 0, has:

#### If b > a , then the equation, (x - a) (x - b) - 1 = 0, has:

maths-General

maths-

#### If x, y are rational number such that Then

#### If x, y are rational number such that Then

maths-General

maths-

#### Statement-I : If then A=

Statement-II : If then

Which of the above statements is true

#### Statement-I : If then A=

Statement-II : If then

Which of the above statements is true

maths-General

maths-

#### The line passing through the points , (3,0) is

#### The line passing through the points , (3,0) is

maths-General

maths-

#### The equation of the line parallel to and passing through is

#### The equation of the line parallel to and passing through is

maths-General

maths-

#### The foot of the perpendicular from the pole on the line is

#### The foot of the perpendicular from the pole on the line is

maths-General

maths-

#### The foot of the perpendicular from on the line is

#### The foot of the perpendicular from on the line is

maths-General

maths-

#### A class contains 4 boys and g girls. Every Sunday five students, including at least three boys go for a picnic to Appu Ghar, a different group being sent every week. During, the picnic, the class teacher gives each girl in the group a doll. If the total number of dolls distributed was 85, then value of g is -

Number of groups having 4 boys and 1 girl

= (

and number of groups having 3 boys and 2 girls

= (

Thus, the number of dolls distributed

= g(1) + (2)[2g (g – 1)]

= 4g

We are given 4g

= (

^{4}C_{4}) (^{g}C_{1}) = gand number of groups having 3 boys and 2 girls

= (

^{4}C_{3}) (^{g}C_{2}) = 2g(g – 1)Thus, the number of dolls distributed

= g(1) + (2)[2g (g – 1)]

= 4g

^{2}– 3gWe are given 4g

^{2}– 3g = 85 g = 5.#### A class contains 4 boys and g girls. Every Sunday five students, including at least three boys go for a picnic to Appu Ghar, a different group being sent every week. During, the picnic, the class teacher gives each girl in the group a doll. If the total number of dolls distributed was 85, then value of g is -

maths-General

Number of groups having 4 boys and 1 girl

= (

and number of groups having 3 boys and 2 girls

= (

Thus, the number of dolls distributed

= g(1) + (2)[2g (g – 1)]

= 4g

We are given 4g

= (

^{4}C_{4}) (^{g}C_{1}) = gand number of groups having 3 boys and 2 girls

= (

^{4}C_{3}) (^{g}C_{2}) = 2g(g – 1)Thus, the number of dolls distributed

= g(1) + (2)[2g (g – 1)]

= 4g

^{2}– 3gWe are given 4g

^{2}– 3g = 85 g = 5.