Question

If B= (0,1) then the set of all cluster point of B in R¹ is

Answer 1

Answer:

Correct option is

A

A circle

PA:PB=2:3

⇒  

PB  

2

 

PA  

2

 

​

=  

3  

2

 

2  

2

 

​

 

⇒  

(x−7)  

2

+(y−6)  

2

 

(x−5)  

2

+(y+4)  

2

 

​

=  

9

4

​

 

⇒9[x  

2

−10x+25+y  

2

+8y+16]=4[x  

2

−14x+49+y  

2

−12y+36]

⇒9x  

2

+9y  

2

−90x+72y+369=4x  

2

+4y  

2

−56x−48y+340

⇒5x  

2

+5y  

2

−34x+120y+29=0

 

The above equation represents a circle since coefficient of x  

2

= coefficient of y  

2

 and coefficient of xy=0.