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AP EAMCET · Maths · Vector Algebra

If a point \(\mathrm{C}\) divides the line segment joining the points with the position vectors \(2 \hat{i}-3 \hat{j}+2 \hat{k}\) and \(3 \hat{i}-\hat{j}-2 \hat{k}\) in the ratio \(2: 3\), then the distance of \(\mathrm{C}\) from the point with position vector \(2 \hat{i}-\hat{j}+\hat{k}\) is

  1. A \(\frac{7}{5}\)
  2. B \(\frac{4}{5}\)
  3. C \(\frac{4}{5}\)
  4. D \(\frac{3}{5}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{7}{5}\)

Step-by-step Solution

Detailed explanation

Let \(\vec{r}\) is the position vector of the point \(C\). Since, point \(C\) divides the line segment joining the points with the position vectors \(2 \hat{i}-3 \hat{j}+2 \hat{k}\) and \(3 \hat{i}-\hat{j}-2 \hat{k}\) in the ratio \(2: 3\), then, we have…