Respuesta :
The magnitude of vector (-7,-5) =
= [tex] \sqrt{ (-7)^{2} + (-5)^{2} } = \sqrt{74} = 8.6[/tex]
vector as the sum of unit vectors = -7 i - 5 j
= [tex] \sqrt{ (-7)^{2} + (-5)^{2} } = \sqrt{74} = 8.6[/tex]
vector as the sum of unit vectors = -7 i - 5 j