(b)answer any two questions : (i) a circ...

(b)answer any two questions : (i) a circular ink blot grows at the rate of `2cm^2/sec` .find the rate at which the radius is increasing after `2 (6/11) seconds`

Topper's Solved these Questions

HIGHER SECONDARY EXAMINATION 2020.
UNITED BOOK HOUSE|Exercise EXERCISE|40 Videos
HIGHER SECONDARY QUESTION 2019
UNITED BOOK HOUSE|Exercise EXERCISE|40 Videos

Similar Questions

Explore conceptually related problems

The radius of a circle is increasing uniformly at the rate of 3 cm/s. Find the rate at which the area of the circle is increasing when the radius is 10 cm.

A circular disc of radius 3 cm is being heated. Due to expansion, its radius increases at the rate of 0.05 cm/s. Find the rate at which its area is increasing when radius is 3.2 cm.

answer any two questions :2.solve (1+x^2) dy+2xy dx=cot x dx.

A 5 ft long walks away from the foot of a 12(1)/(2)ft high lamp-post at the rate of 3 mi/h. find the rate at which his shadow is increasing.

The surface area of a spherical bubble is increasing at the rate of 2 cm^(2)//s . Then the rate at which the volume of the bubble is increasing at the instant when its radius is 6 cm, is-

The sides of an equilateral triangle are increasing at the rate of 2 cm//s ., then the rate at which the area (in cm^(2)//s ) increases when the side is 10 cm , is-

A 5 ft long man walks away from the foot of a 12 1/2 ft high lamp post at the rate of 3 mile/h. Find the rate at which his shadow is increasing.

The radius of a circular plate is increasing at the rate of 0.01 cm/s when the radius is 12 cm. Then the rate at which the area (in cm^(2)//s ) increases is -

A spherical balloon is expanding. If the redius is increasing at the rate of 5 cm per minute, the rate at which the volume increases ( in cubic centimeter per minute ) when the radius is 10 cm is 400pi k, find k.

Answer any Two questions : An are of length 220 cm of a circle makes an angle 60^@ at the centre. Find the radius of the circle.

UNITED BOOK HOUSE-HIGHER SECONDARY QUESTION 2018-EXERCISE

A relation R is defined on the set of natural numbers N as follows: R=...
Text Solution
|
answer any one question : (ii) prove that , tan(pi/4 +1/2 (cos ^(-1) (...
Text Solution
|
(b) answer the foll. Questions: (i) express the matrix A=[[3,2,3],[4,5...
Text Solution
|
if |[x-1,1,1],[1,x+1,-1],[-1,1,x+1]| =0 , find the value of x.
Text Solution
|
answer the foll. Questions: (i) if y=(sin^(-1)x)/(sqrt(1-x^2)) , then ...
Text Solution
|
or,find the derivatives of tan^(-1) ((sqrt(1+x^2)-1)/x) with respect t...
Text Solution
|
answer the foll. Questions: (ii)evaluate :int (x^4+1)/(x^6+1) dx
Text Solution
|
or, evaluate :int dx/(cos x+sqrt 3 sin x)
Text Solution
|
answer the foll. Question: (iii) solve : x dy/dx = y+x tan (y/x) , giv...
Text Solution
|
or , solve:(1-x^2) dy/dx - xy=1 .
Text Solution
|
(d) answer any one question : (i) if three vectors vec a, vec b and ve...
Text Solution
|
answer any one question : (ii) let vec a= hat i+4 hat j+ 2hat k , vec...
Text Solution
|
Evaluate lim(n->oo)[1^2/(n^3+1^3) + 2^2/(n^3+2^3) +3^2/(n^3+3^3)+…+1...
Text Solution
|
answer any one question : (ii) evaluate : int0^pi (x sin x)/(1+cos ^2x...
Text Solution
|
answer any one question : (ii) if X and Y are two independent variable...
Text Solution
|
(b)answer any two questions : (i) a circular ink blot grows at the rat...
Text Solution
|
answer any two questions :(iii) if the straight line lx+my=n be a norm...
Text Solution
|
answer any two questions :(iv) solve :(2x-10y^3) dy/dx+y=0 .
Text Solution
|
answer any one question : (ii) find the equation of the line which is...
Text Solution
|