Respuesta :

[tex]\bf i=\sqrt{-1}\qquad \qquad i^2=\sqrt{-1}\cdot \sqrt{-1}\implies \sqrt{(-1)^2}\implies -1\\\\ -------------------------------\\\\ (-55i)^2\implies (-55)^2(i)^2\implies 3025\cdot i^2\implies 3025\cdot -1\implies -3025[/tex]
i
[tex] = \sqrt{} [/tex]