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AP EAMCET · Maths · Vector Algebra

\(\mathrm{M}\) and \(\mathrm{N}\) are the mid points of the sides \(\mathrm{BC}\) and \(\mathrm{CD}\) of a parallelogram \(\mathrm{ABCD}\) respectively then \(\overline{A M}+\overline{A N}=\)

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

Answer & Solution

Correct Answer

(D) \(\frac{3}{2} \overline{A C}\)

Step-by-step Solution

Detailed explanation

Let position vectors of A, B, C, D are \(\overrightarrow{0}, \vec{b}, \vec{c}, \vec{d}\) respectively. \(\begin{aligned} & \overrightarrow{A C}=\vec{c} \\ & \overrightarrow{B C}=\vec{c}-\vec{b}\end{aligned}\) \(\mathrm{M}\) is mid point of \(\mathrm{BC}\)…