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TS EAMCET · Maths · Straight Lines

If \(A(4,3,5), B(0,-2,2)\) and \(C(3,2,1)\) are three points. Then, the coordinates of the point in which the bisector of \(\angle B A C\) meets the side \(B C\), is

  1. A \(\left(\frac{15}{8}, \frac{4}{8}, \frac{11}{8}\right)\)
  2. B \(\left(\frac{12}{7}, \frac{2}{7}, \frac{10}{7}\right)\)
  3. C \(\left(\frac{9}{5}, \frac{2}{5}, \frac{7}{5}\right)\)
  4. D \(\left(\frac{3}{2}, 0, \frac{3}{2}\right)\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\left(\frac{15}{8}, \frac{4}{8}, \frac{11}{8}\right)\)

Step-by-step Solution

Detailed explanation

We know that angle bisector of \(\angle B A C\) meets \(B C\) at \(D\) which divides \(B C\) in the ratio \(A B: A C\). i.e. \(\quad \frac{B D}{C D}=\frac{A B}{A C}\)…