MY CART (5)
ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price:

There are no items in this cart.
Continue Shopping
                   

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

3 years ago

Share

Answers : (3)

                                        

Answer is c)

3 years ago
                                        

HOW?

3 years ago
                                        

is it right or not?

3 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
The number of points (x,y) (where x and y both are perfect squares of integers) on the parabola y^2=px,p being a prime number, is ?
 
 
y 2 = px y = sqrt(px) Since x & y are perfect square integers, sqrt(x) is an integer. Since p is a prime no., sqrt(p) is an irrational no. The point which satisfies the given condition is...
 
Y RAJYALAKSHMI 6 months ago
when should we use family of straight lines?
 
 
Hi, The family of straight lines is used when we need to represent large number of lines representing a particular condition....
  img
Shobhit Varshney 4 months ago
 
Find the equation of the line which passes through the point of intersection of L1:2x – 3y + 5 = 0 and L2: 3x – 2y + 5 = 0, and also passes through the origin. Here’s one way to solve the...
 
S. Agarwal 4 months ago
What is the integration of 7^xe^x dx
 
 
Hello Student, Thanks & Regards Arun Kumar Btech, IIT Delhi Askiitians Faculty
  img
Arun Kumar 8 months ago
I want to know how to approach this problem..
 
 
Change the expression in terms of sina + cosa and sina.cosa replace sina.cosa as t and sina+cosa as (1 + 2t) ½ (sina + cosa) + 1/(sina.cosa) + (sina + cosa)/(sina.cosa) = 7 add 1 both sides...
 
Kaustubh Nayyar 5 months ago
 
Just change the expression in terms of sin and cos (i.e. sina+cosa and (sina)(cosa) ) Then replace sina.cosa as t and sina + cosa as (1+2t) 1/2 This gives value of t . we have to find sin 2a...
 
Kaustubh Nayyar 5 months ago
 
x= sin2a
 
Kaustubh Nayyar 5 months ago
The points (0,-1,-1), (-4,4,4),(4,5,1) and (3,9,4) are (A) Collinear (B) Coplanar (C) Forming a square (D) None of these
 
 
The answer is (B) Lets check all the options. for A):- the line through the points (0,-1,-1) and (-4,4,4) is x/-4 = (y+1)/5 = (z+1)/5 The point (4,5,1) does not satisfy this equation, so...
 
Yash Jain one month ago
 
The answer is (B) Lets check all the options. for A):- the line through the points (0,-1,-1) and (-4,4,4) is x/-4 = (y+1)/5 = (z+1)/5 The point (4,5,1) does not satisfy this equation, so...
 
Yash Jain one month ago
x=a cos( theta) + b sin(theta) y=a sin(theta) – b cos( theta) prove that y*y2-x*y1+y=0
 
 
Ans: Hello Student, Please find answer to your question below Differentiate Differentiate
  img
Jitender Singh 7 months ago
View all Questions »