Greenrune113 Greenrune113
  • 23-04-2018
  • Mathematics
contestada

Q7 Q7.) Find the unit vector in the same direction as v.

Q7 Q7 Find the unit vector in the same direction as v class=

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musiclover10045
musiclover10045 musiclover10045
  • 23-04-2018
use Pythagorean theorem:

9i-j = sqrt (9^2 - 1^2) = sqrt(81-1) = sqrt80

now divide both terms in V by that:

u = 9/sqrt(80)i - 1/sqrt(80)j

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Asdfjkadfjkakjf Asdfjkadfjkakjf
  • 30-04-2018
|v| = sqrt(9^2+(-1)^2)=sqrt(82)

u = v/|v| = 9/sqrt(82) i - 1/sqrt(82) j

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