teffy3001
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ive been trying to do this problem but i don't know where to start...any help?
let v be a vector of length 9 in the direction 65degrees south of west.
if u has the same direction as v, and if 3|u| = 2|v|, then which of the following can be used to describe u?
u = 5.705i + 12.235j
u = -2.536i - 5.438j
u = 2.536i + 5.438j
u = -5.705i - 12.235j
none of these
let v be a vector of length 9 in the direction 65degrees south of west.
if u has the same direction as v, and if 3|u| = 2|v|, then which of the following can be used to describe u?
u = 5.705i + 12.235j
u = -2.536i - 5.438j
u = 2.536i + 5.438j
u = -5.705i - 12.235j
none of these