SOLUTION: Show that vectors a and b are perpendicular. Vector a Vector b (2) (4) (3) (-2) (-1) (2)

SOLUTION: Show that vectors a and b are perpendicular. Vector a Vector b (2) (4) (3) (-2) (-1) (2)

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Question 417483: Show that vectors a and b are perpendicular.
Vector a Vector b
(2) (4)
(3) (-2)
(-1) (2)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Hint: To show that vectors

and

are perpendicular, all you need to show is

.

Recall that if

and

, then

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