7 = ( x × v × x + ( 1 × v × ! + ( 1 × v × ! X X Prove that :

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Prove that :
î × (à × î) + ƒ × ( à × ĵ) + k × ( à × i
(a
= 2 a
Transcribed Image Text:Prove that : î × (à × î) + ƒ × ( à × ĵ) + k × ( à × i (a = 2 a
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