Question

What are the components of the vector between the origin and the polar coordinate `(7, (3pi)/2)`?

Answer 1

`vecv = (rcos(theta))hati+ (rsin(theta))hatj`

`vecv = (7cos((3pi)/2)))hati+ (7sin((3pi)/2))hatj`

`vecv = (0)hati+ (-7)hatj`

`vecv = -7hatj`