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सदिशों \(\hat{i}-2\hat{j}+\hat{k}\) तथा \(2\hat{i}+\hat{j}-3\hat{k}\) के लम्ब इकाई सदिश ज्ञात कीजिए।

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माना

अब a⃗  तथा b⃗  के लम्ब इकाई सदिश

अतः सदिशों   \(\hat{i}-2\hat{j}+\hat{k}\) तथा \(2\hat{i}+\hat{j}-3\hat{k}\)  के लम्ब इकाई सदिश का मान \(\frac{\hat{i}+\hat{j}+\hat{k}}{\sqrt{3}}\) है।

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