Formula:7130

Digital Library of Mathematical Functions ID 19.21.E14

${\displaystyle{\displaystyle\eta-\xi=p+q-y-z=\frac{(p-y)(p-z)}{p-x}=\frac{(q-y)(q-z)}{q-x}=\frac{(p-y)(q-y)}{x-y}=\frac{(p-z)(q-z)}{x-z}.}}$

Symbols List

• ${\displaystyle{\displaystyle\xi}}$: ξ
• ${\displaystyle{\displaystyle\eta}}$: η
 

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