Question: A) Expresar en coordenadas polares el siguiente vector: = (12 + 8 ) ara expresar en coordenadas polares (R,) R = = a) (x,y) =

A) Expresar en coordenadas polares el siguiente vector: = (12 + 8 )

ara expresar en coordenadas polares (R,)

R =

=

a) (x,y) = (-12,8)

R =

R =

R =

R = 14,42

=

= -33,69

como este vector se encuentra en el cuarto cuadrante se le suma 360 para calcular el ngulo positivo medido desde el eje positivo de las x

= -33,69 + 360

= 326,31 326

(-12, 8) =(14.42, 326)

para expresar en coordenadas rectangulares (x,y)

x = R cos

y = R sen

b) (R,) = (115, 110)

x = 115 cos110 = -39,33

y = 115 sen110 = 14,09

(115, 110) =(-39.33, 14.09)

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