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Find vectors a . (b × c), if a = 3i - j + 4k, b = 2i + 3j - k and c = -5i + 2j + 3k.

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Find vectors a . (b × c), if a = 3i - j + 4k, b = 2i + 3j - k and c = -5i + 2j + 3k.

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= 3(9 + 2) + 1 (6 – 5) + 4(4 + 15) 

= 33 + 1 + 76 

= 110.

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