A.  ${\left(x-1\right)}^2+{\left(y-1\right)}^2+z^2=\frac{5}{6}$

B.  ${\left(x-1\right)}^2+{\left(y-1\right)}^2+z^2=\frac{25}{6}$

C.  ${\left(x-1\right)}^2+{\left(y-1\right)}^2+z^2=\frac{5}{\sqrt{6}}$

D.  ${\left(x+1\right)}^2+{\left(y+1\right)}^2+z^2=\frac{25}{6}$

A.   ${\left(x-1\right)}^2+{\left(y-1\right)}^2+z^2=\frac{25}{6}$

B.   ${\left(x-1\right)}^2+{\left(y-1\right)}^2+z^2=\frac{5}{\sqrt{6}}$

C.   ${\left(x+1\right)}^2+{\left(y+1\right)}^2+z^2=\frac{25}{6}$

D.   ${\left(x-1\right)}^2+{\left(y-1\right)}^2+z^2=\frac{5}{6}$

A.  $x^2+y^2+z^2+2x-8y+6z+12=0$

B.  $x^2+y^2+z^2=6$

C. $x^2+y^2+z^2=16$

D.  $x^2+y^2+z^2+2x-8y+6z+12=36$

$\mathit{A}. \left(S\right):(x+1{)}^2+(y-2{)}^2+(z-1{)}^2=3$

$\mathit{B}. \left(S\right):(x-1{)}^2+(y-2{)}^2+(z+1{)}^2=9$

$\mathit{C}. \left(S\right):(x-1{)}^2+(y+2{)}^2+(z+1{)}^2=3$

$\mathit{D}. \left(S\right):(x+1{)}^2+(y-2{)}^2+(z-1{)}^2=9$

A.  $H\left(\frac{7}{3};\frac{7}{3};-\frac{2}{3}\right)$

B. $H\left(\frac{1}{3};\frac{1}{3};-\frac{2}{3}\right)$

C.  $H\left(\frac{7}{3};-\frac{7}{3};\frac{2}{3}\right)$

D.  $H\left(\frac{7}{3};\frac{7}{3};\frac{2}{3}\right)$

A.  ${(x-3)}^2+{(y-2)}^2+{(z-2)}^2=1$

B.  ${(x+3)}^2+{(y-2)}^2+{(z+2)}^2=1$

C.  ${(x-3)}^2+{(y-2)}^2+{(z-2)}^2=2$

D.  ${(x-3)}^2+{(y+2)}^2+{(z+2)}^2=2$

A.  ${\left(x-1\right)}^2+{\left(y-2\right)}^2+{\left(z-1\right)}^2=4$

B. ${\left(x+2\right)}^2+{\left(y-1\right)}^2+{\left(z-1\right)}^2=4$

C. ${\left(x-2\right)}^2+{\left(y-1\right)}^2+{\left(z-1\right)}^2=4$

D. ${\left(x-2\right)}^2+{\left(y-1\right)}^2+{\left(z-1\right)}^2=2$

A.  $\left(S\right): {\left(x+2\right)}^2+{\left(y+4\right)}^2+{\left(z+3\right)}^2=1$

B. $\left(S\right): {\left(x-2\right)}^2+{\left(y-4\right)}^2+{\left(z-3\right)}^2=6$

C. $\left(S\right): {\left(x-2\right)}^2+{\left(y-4\right)}^2+{\left(z-3\right)}^2=\frac{2}{7}$

D. $\left(S\right): {\left(x-2\right)}^2+{\left(y+4\right)}^2+{\left(z+4\right)}^2=8$

A. Trong không gian với hệ tọa độ Oxyz, cho đường thẳng điểm I(–1;–1;–1) và mặt phẳng (P): 2x – y + 2z = 0. Viết phương trình mặt cầu (S) tâm I và tiếp xúc với (P)

B.  $\left(S\right): {(x+1)}^2+{(y+1)}^2+{(z+1)}^2=4$

C.  $\left(S\right): {(x+1)}^2+{(y+1)}^2+{(z+1)}^2=9$

D.  $\left(S\right): {(x+1)}^2+{(y+1)}^2+{(z+1)}^2=3$