Translations:Tail shaping and head shaping/6/es

${\begin{aligned}\rho _{0}=b_{0}^{2}+b_{1}^{2}+\ldots +b_{\alpha }^{2}{\ ,\ }\rho _{1}=b_{1}b_{0}+b_{2}b_{1}+\ldots +b_{\alpha }b_{\alpha -1}{,\ldots ,\ }\rho _{\alpha -1}=b_{\alpha -1}b_{0}.\end{aligned}}$

(38)