El profesor se sorprenderá mucho al ver tu solución correcta😉
2 3 2 / 2 \ (cot(x) + 3) + 2*a + 3*a = \a + 2*a + 3/*(cot(x) + 3)
a*w^2 + b*w + c = 0
D = b^2 - 4 * a * c =
(3 - a^2 - 2*a)^2 - 4 * (1) * (-6*a + 2*a^3) = (3 - a^2 - 2*a)^2 - 8*a^3 + 24*a
w1 = (-b + sqrt(D)) / (2*a)
w2 = (-b - sqrt(D)) / (2*a)
x1 = I*im(acot(2*a)) + re(acot(2*a))
/ / 2\\ / / 2\\ x2 = I*im\acot\-3 + a // + re\acot\-3 + a //
x2 = re(acot(a^2 - 3)) + i*im(acot(a^2 - 3))
suma
/ / 2\\ / / 2\\ I*im(acot(2*a)) + re(acot(2*a)) + I*im\acot\-3 + a // + re\acot\-3 + a //
=
/ / 2\\ / / 2\\ I*im(acot(2*a)) + I*im\acot\-3 + a // + re(acot(2*a)) + re\acot\-3 + a //
producto
/ / / 2\\ / / 2\\\ (I*im(acot(2*a)) + re(acot(2*a)))*\I*im\acot\-3 + a // + re\acot\-3 + a ///
=
/ / / 2\\ / / 2\\\ (I*im(acot(2*a)) + re(acot(2*a)))*\I*im\acot\-3 + a // + re\acot\-3 + a ///
(i*im(acot(2*a)) + re(acot(2*a)))*(i*im(acot(-3 + a^2)) + re(acot(-3 + a^2)))