Since the two sides of the stratum are similar the last two terms are equal, and Differentiating with respect to c, we find dc = P' d p(x ' -41rpe (0))+47rp20(c).
They drove west, away from DC.
They reached the trendy teahouse in the wealthy section of DC, Hannah still talking about Paris fashions.
The value of C for an annular aperture of radius r and width dr is thus dC =271-Jo(Pp)pdp, (12).
