Circles $$\(C_{1}\)$$ and $$\(C_{2}\)$$ have equations $$\[ x^{2}+y^{2}+6 x-10 y+18=0 \text { and }(x-9)^{2}+(y+4)^{2}-64=0 \]$$ respectively. Find the greatest and least possible values of $$\(d\)$$. ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ .

Answer:

Knowledge points:

Solution: