Question

- * Find the equation of the sphere (40-1) ,(10-4 9) , (-5 6-11), (123) ?​

Answer 1

Answer:

Correct option is D)

Step-by-step explanation:

Given centre of the sphere is (−1,2,3) and it also passes through (1,−1,2)

Therefore radius of the sphere is =  

(1+1)  

2

+(−1−2)  

2

+(2−3)  

2

 

​

=  

14

​

 

Hence, equation of the required sphere is,

(x+1)  

2

+(y−2)  

2

+(z−3)  

2

=14

⇒x  

2

+y  

2

+z  

2

+2x−4y−6z=0

Hence, option D is correct.