El profesor se sorprenderá mucho al ver tu solución correcta😉
x x + 1 2 4 + 2 + 4*a - a = 0
a*v^2 + b*v + c = 0
D = b^2 - 4 * a * c =
(2)^2 - 4 * (1) * (-a^2 + 4*a) = 4 - 16*a + 4*a^2
v1 = (-b + sqrt(D)) / (2*a)
v2 = (-b - sqrt(D)) / (2*a)
suma
/| ______________|\ / ______________\ /| ______________|\ / ______________\ || / 2 || | / 2 | || / 2 || | / 2 | log\|1 + \/ 1 + a - 4*a |/ I*arg\-1 - \/ 1 + a - 4*a / log\|-1 + \/ 1 + a - 4*a |/ I*arg\-1 + \/ 1 + a - 4*a / ---------------------------- + ----------------------------- + ----------------------------- + ----------------------------- log(2) log(2) log(2) log(2)
=
/| ______________|\ /| ______________|\ / ______________\ / ______________\ || / 2 || || / 2 || | / 2 | | / 2 | log\|1 + \/ 1 + a - 4*a |/ log\|-1 + \/ 1 + a - 4*a |/ I*arg\-1 + \/ 1 + a - 4*a / I*arg\-1 - \/ 1 + a - 4*a / ---------------------------- + ----------------------------- + ----------------------------- + ----------------------------- log(2) log(2) log(2) log(2)
producto
/ /| ______________|\ / ______________\\ / /| ______________|\ / ______________\\ | || / 2 || | / 2 || | || / 2 || | / 2 || |log\|1 + \/ 1 + a - 4*a |/ I*arg\-1 - \/ 1 + a - 4*a /| |log\|-1 + \/ 1 + a - 4*a |/ I*arg\-1 + \/ 1 + a - 4*a /| |---------------------------- + -----------------------------|*|----------------------------- + -----------------------------| \ log(2) log(2) / \ log(2) log(2) /
=
/ / ______________\ /| ______________|\\ / / ______________\ /| ______________|\\ | | / 2 | || / 2 ||| | | / 2 | || / 2 ||| \I*arg\-1 + \/ 1 + a - 4*a / + log\|-1 + \/ 1 + a - 4*a |//*\I*arg\-1 - \/ 1 + a - 4*a / + log\|1 + \/ 1 + a - 4*a |// ------------------------------------------------------------------------------------------------------------------------------ 2 log (2)
(i*arg(-1 + sqrt(1 + a^2 - 4*a)) + log(Abs(-1 + sqrt(1 + a^2 - 4*a))))*(i*arg(-1 - sqrt(1 + a^2 - 4*a)) + log(Abs(1 + sqrt(1 + a^2 - 4*a))))/log(2)^2
/| ______________|\ / ______________\ || / 2 || | / 2 | log\|1 + \/ 1 + a - 4*a |/ I*arg\-1 - \/ 1 + a - 4*a / x1 = ---------------------------- + ----------------------------- log(2) log(2)
/| ______________|\ / ______________\ || / 2 || | / 2 | log\|-1 + \/ 1 + a - 4*a |/ I*arg\-1 + \/ 1 + a - 4*a / x2 = ----------------------------- + ----------------------------- log(2) log(2)
x2 = log(Abs(sqrt(a^2 - 4*a + 1) - 1))/log(2) + i*arg(sqrt(a^2 - 4*a + 1) - 1)/log(2)