- After harvesting, rhizomes are cleaned and boiled for 40-60 minutes to remove raw odor.
- They are then sun-dried for 10-15 days to reduce moisture.
- Polishing is done by rubbing dried rhizomes to improve appearance.
- Proper curing enhances color, aroma, and storage life.
The slope of the tangent to the curve \( x = \sin\theta \) and \( y = \cos 2\theta \) at \( \theta = \frac{\pi}{6} \) is ___________.
Solve the following L.P.P. by graphical method:
Maximize:
\[ z = 10x + 25y. \] Subject to: \[ 0 \leq x \leq 3, \quad 0 \leq y \leq 3, \quad x + y \leq 5. \]