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If → a = 3 ^ I − ^ J + 2 ^ K and → B = 2 ^ I + ^ J − ^ K , Then Find ( → a × → B ) → a . - Mathematics

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प्रश्न

If \[\vec{a} = 3 \hat{ i }  - \hat{ j }  + 2 \hat{ k } \] and  \[\vec{b} = 2 \hat { i }  + \hat{ j }  - \hat{ k} ,\]  then find \[\left( \vec{a} \times \vec{b} \right) \vec{a} .\]

 

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उत्तर

\[\text{ Since } \vec{a} \times \vec{b} \text{ is a vector, } \left( \vec{a} \times \vec{b} \right) \vec{a} \text{ without any dot or cross product in between is meaningless } .\]

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अध्याय 25: Vector or Cross Product - very short answers [पृष्ठ ३३]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 25 Vector or Cross Product
very short answers | Q 15 | पृष्ठ ३३

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