I know the title might not be the most accurate but i don't really know how else to title it.
Question is, why is $r'=Rcos\phi'+Rsin\phi'$
Second question: 
Here my text book mentioned that $r'cos\alpha = \hat{r} \cdot r'$, why is this?
2026-04-12 10:38:49.1775990329
Vector notation in 3 dimension
57 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in CALCULUS
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