ghahn929
ghahn929 ghahn929
  • 26-05-2020
  • Mathematics
contestada

Evaluate the expression. r = <5, 9, -4>, v = <3, 3, -8>, w = <9, -6, -1> v ⋅ w

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 26-05-2020

Answer:

< 27, -18, 8>

Step-by-step explanation:

Let v = <3, 3, -8>, w = <9, -6, -1>

v*w = < 3*9, 3*-6, -8*-1>

       < 27, -18, 8>

Answer Link
gimmyghons gimmyghons
  • 31-08-2021

Answer:

17

Step-by-step explanation:

do (a1 x a2) + (b1 x b2) + (c1 x c2)

(a1 x a2) = 3(9) = 27

(b1 x b2) = 3(-6) = -18

(c1 x c2) = 8

27 + (-18) + 8 = 17

When finding dot product, always add up the results, otherwise it's incomplete!

Answer Link

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