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AP EAMCET · Maths · Vector Algebra

\(7 \bar{i}-4 \bar{j}+7 \bar{k}, \bar{i}-6 \bar{j}+10 \bar{k}, \overline{-i}-3 \bar{j}+4 \bar{k}, 5 \bar{i}-\bar{j}+5 \bar{k}\) respectively, then \(A B C D\) is

  1. A a parallelogram but not rhombus
  2. B a square
  3. C a quadrilateral which is not a parallelogram
  4. D a rectangle
Verified Solution

Answer & Solution

Correct Answer

(C) a quadrilateral which is not a parallelogram

Step-by-step Solution

Detailed explanation

\(A: 7 \hat{i}-4 \hat{j}+7 \hat{k}\) \(\begin{aligned} & B: \hat{i}-6 \hat{j}+10 \hat{k} \\ & C:-\hat{i}-3 \hat{j}+4 \hat{k} \\ & D: 5 \hat{i}-\hat{j}+5 \hat{k}\end{aligned}\)…