Question
Explain what is wrong with the statement.All points of the curve $\vec{r}(t)=R \cos t \vec{i}+R \sin t \vec{j}+t \vec{k}$ are the same distance, $R,$ from the origin.
Step 1
The given curve is represented by the vector function $\vec{r}(t) = R \cos t \vec{i} + R \sin t \vec{j} + t \vec{k}$. Show more…
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