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If A, B, C three unit vectors such that A + B + C = 0 then the value of A . B + C . A is
Physics
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4 stepsदिए गए सदिशों को लिखें.
हमें सदिश और दिए गए हैं:
अदिश गुणनफल (dot product) का सूत्र लागू करें.
दो सदिशों और का अदिश गुणनफल इस प्रकार दिया जाता है:
मानों को सूत्र में प्रतिस्थापित करें और गणना करें.
यहां, , , और , , हैं.
विकल्पों में से सही उत्तर चुनें.
गणना किया गया मान 46 है, जो विकल्प (b) से मेल खाता है.
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