the circle whose eq. are x2 +y2 +c2=2ax and x2 +y2 +c2-2by=0 will touch another externally if


a. 1/b2 +1/c2 =1/a2


b. 1/b2 =1/c2 +1/a2


c. 1/a2 +1/b2 =1/c2

2 years ago

Share

Answers : (3)

                                        

Answer is c)

2 years ago
                                        

HOW?

2 years ago
                                        

is it right or not?

2 years ago

Post Your Answer

More Questions On Analytical Geometry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
If the vertices of triangles are placed at (0,0), (0,6), (6,0). The prove that the distance between the orthocentre and circumcentre is 3 root2.
 
 
Solution: As we know the.. orthocentre is the point of intersection of altitudes of the triangle... soo for right angle triangle.. orthocenter is the vertex itself on which right angle is...
  img
Ajay Verma 4 months ago
let triangleABC have vertices A(3,4),B(4,6) and C(-1,6).The distance b/w orthocentre of triangle and the origin is
 
 
ans: triangle ABC is a right angle triangle.. so the ortho-center of the triangle will be the vertex where the right angle made..which is vertex A (3,4) ( you can figure it out by drawing...
  img
Ajay Verma 10 months ago
 
ans: triangle ABC is a right angle triangle.. so the ortho-center of the triangle will be the vertex where the right angle made..which is vertex A (3,4) ( you can figure it out by drawing...
  img
Ajay Verma 10 months ago
if the extremities of a diagonal of a square are (1,-2,3) and (2,-3,5) then the lenght of its side is ?
 
 
Length of the diagonal of square is √ ((1-2) 2 + (-2+3) 2 +(3-5) 2 ) = √6 We aslo know that length of square is √2 times the side. This implies √2a= √6 ( where...
  img
Harsh Patodia 3 months ago
two vectors a and b are of equal lengths and mutually perpendicular. show that their sum and difference will be of same length and mutually perpendicular.
 
 
Hi Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty
  img
Arun Kumar 6 months ago
see the attachment plz
 
 
Hello Student, Just take lnx = t So 1/x dx = dt So ques becomes integration sint dt...
  img
Nishant Vora one month ago
find sum 1^2*C1+3^2*C3+5^2*C5....
 
 
Hello Student, Thanks & Regards Arun Kumar Btech, IIT Delhi Askiitians Faculty
  img
Arun Kumar 5 months ago
View all Questions »