Vector Algebra Question 204
Question: The spheres $ r^{2}+2u_1,.,r+2d_1=0 $ and $ r^{2}+2u_2,.,r+2d_2=0 $ cut orthogonally, if
[AMU 1999]
Options:
A) $ u_1,.,u_2=0 $
B) $ u_1+u_2=0 $
C) $ u_1,.,u_2=d_1+d_2 $
D) $ (u_1-u_2),.,(u_1+u_2)=d_1^{2}+d_2^{2} $
Show Answer
Answer:
Correct Answer: C
Solution:
- It is obvious.
BETA
