heyguysimacoolperson heyguysimacoolperson
  • 21-05-2018
  • Mathematics
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PRE -CALC QUESTION PLS HELP

PRE CALC QUESTION PLS HELP class=

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carlosego
carlosego carlosego
  • 21-05-2018
For this case we have the following vector:
 v = (- 8, 2)
 Using product point we have:
 v.v = (-8, 2). (- 8, 2)
 v ^ 2 = (-8) * (- 8) + (2) * (2)
 v ^ 2 = 64 + 4
 v ^ 2 = 68
 v = root (68)
 v = root (4 * 17)
 v = 2 * root (17)
 Answer:
 
v = 2 * root (17)
 
option c
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