SOLUTION: Find the magnitude and direction angle of the vector v. (Round your angle to one decimal place.) v = −8i − 3j ||v|| = 𝜃 =

Algebra ->  Trigonometry-basics -> SOLUTION: Find the magnitude and direction angle of the vector v. (Round your angle to one decimal place.) v = −8i − 3j ||v|| = 𝜃 =      Log On


   



Question 1173578: Find the magnitude and direction angle of the vector v. (Round your angle to one decimal place.)
v = −8i − 3j
||v|| =
𝜃 =

Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
v = −8i − 3j
Find the magnitude and direction angle of the vector v.
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Mag+=+sqrt%288%5E2+%2B+3%5E2%29
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Angle = arctan(-3/-8) in Q3
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I don't care, JUST GIMME THE ANSWER.

Answer by ikleyn(52785) About Me  (Show Source):
You can put this solution on YOUR website!
.

To be accurate,


            Mag = sqrt%288%5E2+%2B+3%5E2%29 = sqrt%2873%29,

            theta   is in  QIII,   theta = arctan%283%2F8%29 + pi.