This is not homework I'm studying for a test and i really tried this one i still doing it wrong.

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Use the Given information provided to find |(u+v)| and alpha

|u|= 21g

|v|= 3.2g

deita= 53 degrees

*Find the unit vector u in the direction of the vector w= <2 -1>

*Change the polar equation r= 4sin(deita) to rectangular form

*Use graphing techniques to sketch a graph of r= 2+2 cos(deita) on a polar coordinate plane. Show work and resulting graph.