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Integration by Partial Fractions

If a.i = 4, t...

Question

$I f a . i = 4, t h e n (a x j) . (2 j - 3 k) i s e q u a l t o ?$

$12$

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$2$

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$0$

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$- 12$

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Solution

The correct option is D
$- 12$

Finding the value:
Given,
$(a . j) \times (2 j - 3 k)$
We can write,
$a . (j \times (2 j - 3 k)) = a . (- 3 (j \times k)) = - (a . i) = - 3 (4) = - 12$
Hence, option(D) is correct.

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a . i = 4

(a . j) \times (2 j - 3 k) =

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