Respuesta :

Answer:

[tex]s(x) = - x + 1 \\ t(x) = {x}^{2} - 1 \\ s(t(x)) = - ({x}^{2} - 1) + 1 \\ = - {x}^{2} + 1 + 1 \\ = 2 - {x}^{2} \\ s(t(2)) = 2 - {2}^{2} \\ \boxed{s(t(2)) = - 2} [/tex]