AP EAMCET · Maths · Vector Algebra
Let \(\bar{a}, \bar{b}\) and \(\bar{c}\) be non-coplanar vectors. If \(\mathrm{P}, \mathrm{Q}, \mathrm{R}\) and \(\mathrm{S}\) are four points with position vectors \(-\bar{a}+4 \bar{b}-3 \bar{c}, 3 \bar{a}+2 \bar{b}-5 \bar{c},-3 \bar{a}+8 \bar{b}-5 \bar{c}\) and \(-3 \bar{a}+2 \bar{b}+\bar{c}\) respectively then the ordered pair \((x, y)\) of real numbers such that \(\overline{P Q}=x \cdot \overline{P R}+y \cdot \overline{P S}\) is
- A \((1,-1)\)
- B \((-1,1)\)
- C \((-1,-1)\)
- D \((1,1)\)
Answer & Solution
Correct Answer
(C) \((-1,-1)\)
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