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वह सदिश ज्ञात कीजिये जिसका परिमाण 5 ...

वह सदिश ज्ञात कीजिये जिसका परिमाण 5 है तथा जो सदिश`2hat(i) - hat(j)` के समान्तर है।

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Show that the following points whose position vectors are given are collinear : (i) 5 hat(i) + 5 hat(k), 2 hat(i) + hat(j) + 3 hat(k) and - 4 hat(i) + 3 hat(j) - hat(k) (ii) - 2 hat(i) + 3 hat(j) + 5 hat(k), hat(i) + 2 hat(j) + 3 hat(k) and 7 hat(i) - hat(k) .

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