Question

despejar F de la fórmula
$r = \frac{1}{24} \sqrt{ {b}^{2} } + {c}^{2} - 4af$

Answer 1

r = (1/24)√b²+c²-4af
(Sumamos a ambos lados 4af)

r+4af = (1/24)√b²+c²-4af+4af
r+4af = (1/24)√b²+c²
(Restamos r a ambos lados)

r-r+4af = (1/24)√b²+c²-r
4af = (1/24)√b²+c²-r
(Dividimos a ambos lados por 4a)

4af/4a = [(1/24)√b²+c²-r]/4a
f = [(1/24)√b²+c²-r]/4a

Saludos Ariel