Ques. -18

Geometry Level 4

If two circles x 2 + y 2 + 4 x + 6 y = 0 x^2+y^2+4x+6y=0 and x 2 + y 2 + 2 g x + 2 f y = 0 x^2+y^2+2gx+2fy=0 touch each other, then :

If you're looking to promote your Rank in JEE-MAINS-2015, then go for solving this set : Expected JEE-MAINS-2015 .
f-g=1 3f=2g 3g=2f f+g=6

View wiki
Sandeep Bhardwaj by Sandeep Bhardwaj , 28, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Deepanshu Gupta
Feb 25, 2015

In JEE Mains style :

If Two circles are identical and co-incident in every term's (mean's have same algebraic equation) then they are also tuch each other :

Hence Take : g=2 , f=3

Q.E.D

9 Helpful 0 Interesting 0 Brilliant 0 Confused

As expected from the Genius :) +1

A Former Brilliant Member - 6 years, 3 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...