The correct option is A 2i+11j 3i× (3i 4k) + nbsp;(i+2j) ×k nbsp; nbsp; nbsp; = 0 + 12j nbsp;j + 2i nbsp; nbsp; nbsp; = 2 ...

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Multiplication with Vectors

3i×3i-4k+i+2j...

Question

$3 ¯ i \times (3 ¯ i - 4 ¯ ¯ ¯ k) + (¯ i + 2 ¯ j) \times ¯ ¯ ¯ k =$

2 ¯ i + 11 ¯ j

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2 ¯ i - 11 ¯ j

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- 2 ¯ i + 11 ¯ j

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¯ i + ¯ j + ¯ ¯ ¯ k

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Solution

The correct option is A $2 ¯ i + 11 ¯ j$
$3 ¯ i \times (3 ¯ i - 4 ¯ ¯ ¯ k) + (¯ i + 2 ¯ j) \times ¯ ¯ ¯ k$
$= 0 + 12 ¯ j - ¯ j + 2 ¯ i$
$= 2 ¯ i + 11 ¯ j$

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