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Evaluate 2j*(3-4k), i(j*k)

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Evaluate 2j*(3-4k), i(j*k)
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1 Answer

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2j x (3i - 4k)

= 6j x i - 8j x k

= -6k - 8i (∵ j x i = -k and j x k = i)

And i (j x k) = i.i = 1 (∵ j x k = i and i.i = 1)

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