If $A=(5,4,2), B=(6,2,-1), C=(8,-2,-7)$, then the harmonic conjugate of $A$ with respect to $B$ and $C$ is

If $A=(5,4,2), B=(6,2,-1), C=(8,-2,-7)$, then the harmonic conjugate of $A$ with respect to $B$ and $C$ is
  1. $(7,0,-3)$
  2. $\left(\frac{13}{2},-1, \frac{-5}{2}\right)$
  3. $\left(\frac{13}{2}, 1, \frac{-5}{2}\right)$
  4. $\left(\frac{11}{2}, 3, \frac{1}{2}\right)$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (24 Apr Shift 2)

Practice more Three Dimensional Geometry questions on Aicharya