Sarthaks Test
0 votes
in JEE by (54 points)

is (x-3)2 +(y+2)2 =5r2 to the circle (x-3)2 + (y+2)2 =r2 is 16 unit ,then the area between the two circles in sq. unit is : 

  • 32pi
  •  8pi
  •  4pi 
  • 256pi 
  • 16pi

1 Answer

+1 vote
by (67.4k points)
selected by
Best answer

Let point P(x1,y1) be any point on the circle, therefore it satisfy the circle  

(x1−3)2+(y1+2)2=5r2 ...(i) 

The length of the tangent drawn from point P(x1,y1) to the circle 

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.