Saved Bookmarks
| 1. |
If `x=a(theta+sintheta)` and `y=a(1-costheta)`, find `dy//dx`. |
|
Answer» `x=a(theta+sintheta)` `implies (dx)/(d theta)=a(1+costheta)` (1) `y=a(1-cos theta)implies(dy)/(d theta)=a(0-(-sin theta))=a sin theta` (2) Dividing (ii) and (i) `(dy//d theta)/(dx//d theta)=(dy)/(dx)=(sin theta)/(1+cos theta)=tan( theta//2)` |
|