MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Rahul Ramesh Grade: 11
        

find the radius of a circle which is concentric with the circle xsq+ysq-2x+6y-3=0 and whose radius is double the radius of the circle xsq+ysq-6x-1=0

6 years ago

Answers : (1)

DilipReddy Ask IITians expert-IITB
36 Points
										

Dear Ramesh


As you are asking for the radius of a circle whose radius is double the radius of the circle xsq+ysq-6x-1=0.We shall first find the radius of the above circle.


It can be written as (x-3)^2+y^2-9-1=0


(x-3)^2+y^2=10


comparing the above equatio with (x-a)^2+(y-b)^2=r^2.


we get radius =√(10).


and the desired circle radius =2√(10)


centre of xsq+ysq-2x+6y-3=0 is


(x-1)^2+(y-(-3))^2=13


centre is (1,-3)


Seems you are asking for the circle equation with centre (1,-3) and radius 2√(10) is (x-1)^2+(y+3)^2=40.


 


 


thanks


 


 



6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
Get extra Rs. 3,180 off
USE CODE: Srinivas20
Get extra Rs. 297 off
USE CODE: Srinivas20

Ask Experts

Have any Question? Ask Experts

Post Question

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