Prove that vec a × (vec b × vec c)=(vec a × vec c)vec b - (vec a × vec b)vec c . Where vec a=vec i - vec j vec b= -vec j + vec k and vec c = vec i + vec j + vec k .
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Prove that vec a × (vec b × vec c)=(vec a × vec c)vec b - (vec a × vec b)vec c . Where vec a=vec i - vec j vec b= -vec j + vec k and vec c = vec i + vec j + vec k .
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