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यदि बिन्दुओं A, B तथा C के स्थिति सदिश क...

यदि बिन्दुओं A, B तथा C के स्थिति सदिश क्रमश: `hati + 2hatj + 3hatk, -hati - hatj + 8hatk` तथा `-4hati + 4hatj + 6hatk` हैं तो सिद्ध कीजिए कि- ABC एक समबाहु त्रिभुज हैं |

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