If the distance of the point P(1,-2,1) from the plane x+2y-2z=a, where a>0, is 5, then the foot of the perp f

### Question Asked by a Student from EXXAMM.com Team

Q 1347112983.     If the distance of the point P(1,-2,1) from the plane x+2y-2z=a, where a>0, is 5, then the foot of the perp from P to this plane is ?
A

(frac{8}{3},frac{4}{3},-frac{7}{3})

B

(frac{1}{3},frac{2}{3},-frac{10}{3})

C

(frac{4}{3},-frac{4}{3},-frac{1}{3})

D

(frac{2}{3},-frac{1}{3},-frac{5}{3})

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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