\( \triangle A B C \) में, बिन्दुओं \( A, B \) और \( C \) के स्थिति सदिश क्रमश: \( (\hat{i}+2 \h...

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\( \triangle A B C \) में, बिन्दुओं \( A, B \) और \( C \) के स्थिति सदिश क्रमश: \( (\hat{i}+2 \hat{j}+3 \hat{k}),(-\hat{i}-\hat{j}+8 \hat{k}) \) और \( (-4 \hat{i}+4 \hat{j}+6 \hat{k}) \) हैं। सिद्ध कीजिए कि \( \triangle A B C \) एक समबाहु त्रिभुज है।
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