Question 1044217
Give a couple of angles arbitrarily for part (b).


u=(r,85) if this vector is polar form, and another vector v=(r,50) in similar form, and assuming both vectors u and v are of size  r.  Not need to be, but just as an example.


You want {{{u+v=w}}}.
Changing the form into components
(r*cos(85),r*sin(85))+(r*cos(50),r*sin(50))=(250*cos(70),250*sin(70))
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{{{system(r*cos(85)+r*cos(50)=250*cos(70),r*sin(85)+r*sin(50)=250*sin(70))}}}