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2 years ago

Determine the value of a so that A = 2i+aj+k and B = 4i-2j-2k are perpendicular

1 answer:

7 0

In order to make them perpendicular, their dot product must result in zero. so:

$4 \times 2 - 2a - 2 \times 1 = 0$

$2a = 8 - 2 = 6$

$a = 3$

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A jar contains 2 green marbles, 4 blue marbles, and 3 yellow marbles. A marble is chosen at random from the jar and replaced. Fi

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9 months ago

Determine the value of a so that A = 2i+aj+k and B = 4i-2j-2k are perpendicular​

Determine the value of a so that A = 2i+aj+k and B = 4i-2j-2k are perpendicular