TS EAMCET · Maths · Vector Algebra
Two adjacent sides of a triangle are represented by the vectors \(2 \bar{i}+\bar{j}-2 \bar{k}\) and \(2 \sqrt{3} \bar{i}-2 \sqrt{3} \bar{j}+\sqrt{3} \bar{k}\). Then the least angle of the triangle and perimeter of the triangle are respectively
- A \(\frac{\pi}{3} ; 3(3+\sqrt{3})\)
- B \(\frac{\pi}{12} ; 6+3 \sqrt{2}\)
- C \(\frac{\pi}{2} ; 12\)
- D \(\frac{\pi}{6} ; 9+3 \sqrt{3}\)
Answer & Solution
Correct Answer
(D) \(\frac{\pi}{6} ; 9+3 \sqrt{3}\)
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