Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

Get extra R 400 off


S.T a rectangle of maximum perimeter which can be inscribed in a circle of radius r is a square of side root2*r? 

6 years ago


Answers : (1)


Dear Linta

let the side of rectangle is a and b and its center coinside with the center of circle.

a/2 = r cosΘ  then  b/2 =r sinΘ

now perimeter P =2a+2b

                        =4r(cosΘ + sinΘ)

                         = 4r√2sin(Θ +45)

so for maximum P   , sin(Θ +45) =1

              so Θ =45

  so a=b = r√2

Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you
the answer and detailed  solution very  quickly.

 We are all IITians and here to help you in your IIT JEE preparation.

All the best.
Askiitians Experts

6 years ago

Post Your Answer

Other Related Questions on Differential Calculus

e x l og a + e alogx +e aloga
since we can write e xlog a =e log a^x =a x so the required answer is a x +x a +a a
Revti Raman one year ago
please answer the question given in attatchment
Hint: Frst find the value of d 2 y/dt 2 and d 2 x/dt 2 then divide these two values to get d 2 y/dx 2 . Then finally put t = 0. Thanks.
Vijay Mukati one year ago
find the maximum and minimum value of g(x) = x^3 + 1 plz reply as fast as you can
the given function is g(x)=x^3+1 for determining maximum and minimum values we have to find out that the given function is increasing or decreasing so differentiate the given function on...
SREEKANTH 4 months ago
g(x) = x^3 + 1 differentiate it g’(x) = 3x^2 = 0 hence slope is always positive. the graph will approach to + infinity and – infinity as x increases and decreases. Therfoore maximum and...
Vikas TU 4 months ago
Sin x + cos x =√2 cos x then cos x - sin x is equal to a)√2 cos x b)√2 sin x c)√2 ( cos x + sin x) d) none of these
sin x+cos x=root 2 cos x (sin x+cos x)^2=2cos^2 x sin^2 x+cos^2 x+2sin xcos x=2cos^2 x 2sin xcos x=2cos^2 x so therefore,here, sinx=cosx therefore, cos x-sin y=cos x-cos x=0 D OPTION
Shreyash Rane one month ago
I am not getting the derivation of the formula nPr=n!÷(n-r)!. n=no. of objects and r=no. of times taken (the object)
Consider that you have three drawers and 10 balls of different colors. Now in how many ways can you fill all three drawers with balls from set of 10 balls so that each drawer conatins one...
Ajay 3 months ago
Please answer it fast! not able to understand permutations and combinations without it. 😢 Anyone kindly answer it. Hurry up please!!
riya 3 months ago
let a,b such that pi
Dear friend the question is not clarity. Please upload question with proper way. thank you. pelase re upload question any one answer it
View all Questions »

  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 3,750 off

Get extra R 400 off

More Questions On Differential Calculus

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details