Vector-Algebra Question 404
Question: If the middle points of sides BC, CA & AB of triangle ABC are respectively D, E, F then position vector of centre of triangle DEF, when position vector of A, B, C are respectively $ \hat{i}+\hat{j},\hat{j}+\hat{k},\hat{k}+\hat{i} $ is
Options:
A) $ \frac{1}{3}(\hat{i}+\hat{j}+\hat{k}) $
B) $ (\hat{i}+\hat{j}+\hat{k}) $
C) $ 2(\hat{i}+\hat{j}+\hat{k}) $
D) $ \frac{2}{3}(\hat{i}+\hat{j}+\hat{k}) $
Correct Answer: D
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Answer:
Solution:
BETA
