Questions
detailed solution
Correct option is A
In the figure, circles with hard lines are the given circles with centres C1 and C2 and radii r1 and r2 . Let the circle with dotted line be the variable circle, which touches the given two circles as erplained in the question, which has centre C and radius r. Now CC2=r+r2 and CC1=r1−r Hence ,CC1+CC2=r1+r2(= constant ) Then the locus of C is an ellipse whose foci are C1 and C2 .Talk to our academic expert!
Similar Questions
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests