AP EAMCET · Maths · Vector Algebra
\((\bar{a}+2 \bar{b}-\bar{c}) \cdot\{(\bar{a}-\bar{b}) \times(\bar{a}-\bar{b}-\bar{c})\}=\)
- A \([\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]\)
- B \(3[\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]\)
- C \([\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]^2\)
- D \(2[\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]\)
Answer & Solution
Correct Answer
(B) \(3[\overline{\mathrm{a}} \overline{\mathrm{b}} \overline{\mathrm{c}}]\)
Step-by-step Solution
Detailed explanation
\( (\bar{a}+2 \bar{b}-\bar{c}) \cdot\{(\bar{a}-\bar{b}) \times(\bar{a}-\bar{b}-\bar{c})\} = [(\bar{a}+2 \bar{b}-\bar{c}) \quad (\bar{a}-\bar{b}) \quad (\bar{a}-\bar{b}-\bar{c})] \)…
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