-2*sin(x)*cos(x)-10=0 la ecuación
El profesor se sorprenderá mucho al ver tu solución correcta😉
Solución
Gráfica
/ / ________________ \\ / / ________________ \\
| | ___ / ____ ____|| | | ___ / ____ ____||
| | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 || | | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 ||
x1 = - 2*re|atan|- -- + ------------------------- + ----------|| - 2*I*im|atan|- -- + ------------------------- + ----------||
\ \ 10 10 10 // \ \ 10 10 10 //
x1=−2re(atan(−101+1021−311i+10311i))−2iim(atan(−101+1021−311i+10311i))
/ / ________________\\ / / ________________\\
| | ____ ___ / ____ || | | ____ ___ / ____ ||
| |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 || | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 ||
x2 = 2*re|atan|-- - ---------- + -------------------------|| + 2*I*im|atan|-- - ---------- + -------------------------||
\ \10 10 10 // \ \10 10 10 //
x2=2re(atan(101−10311i+1021−311i))+2iim(atan(101−10311i+1021−311i))
/ / ________________ \\ / / ________________ \\
| | ___ / ____ ____|| | | ___ / ____ ____||
| |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 ||
x3 = 2*re|atan|-- - ------------------------- + ----------|| + 2*I*im|atan|-- - ------------------------- + ----------||
\ \10 10 10 // \ \10 10 10 //
x3=2re(atan(101−1021+311i+10311i))+2iim(atan(101−1021+311i+10311i))
/ / ________________ \\ / / ________________ \\
| | ___ / ____ ____|| | | ___ / ____ ____||
| |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 ||
x4 = 2*re|atan|-- + ------------------------- + ----------|| + 2*I*im|atan|-- + ------------------------- + ----------||
\ \10 10 10 // \ \10 10 10 //
x4=2re(atan(101+1021+311i+10311i))+2iim(atan(101+1021+311i+10311i))
x4 = 2*re(atan(1/10 + sqrt(2)*sqrt(1 + 3*sqrt(11)*i)/10 + 3*sqrt(11)*i/10)) + 2*i*im(atan(1/10 + sqrt(2)*sqrt(1 + 3*sqrt(11)*i)/10 + 3*sqrt(11)*i/10))
Suma y producto de raíces
[src]
/ / ________________ \\ / / ________________ \\ / / ________________\\ / / ________________\\ / / ________________ \\ / / ________________ \\ / / ________________ \\ / / ________________ \\
| | ___ / ____ ____|| | | ___ / ____ ____|| | | ____ ___ / ____ || | | ____ ___ / ____ || | | ___ / ____ ____|| | | ___ / ____ ____|| | | ___ / ____ ____|| | | ___ / ____ ____||
| | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 || | | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 || | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 || | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 ||
- 2*re|atan|- -- + ------------------------- + ----------|| - 2*I*im|atan|- -- + ------------------------- + ----------|| + 2*re|atan|-- - ---------- + -------------------------|| + 2*I*im|atan|-- - ---------- + -------------------------|| + 2*re|atan|-- - ------------------------- + ----------|| + 2*I*im|atan|-- - ------------------------- + ----------|| + 2*re|atan|-- + ------------------------- + ----------|| + 2*I*im|atan|-- + ------------------------- + ----------||
\ \ 10 10 10 // \ \ 10 10 10 // \ \10 10 10 // \ \10 10 10 // \ \10 10 10 // \ \10 10 10 // \ \10 10 10 // \ \10 10 10 //
(((−2re(atan(−101+1021−311i+10311i))−2iim(atan(−101+1021−311i+10311i)))+(2re(atan(101−10311i+1021−311i))+2iim(atan(101−10311i+1021−311i))))+(2re(atan(101−1021+311i+10311i))+2iim(atan(101−1021+311i+10311i))))+(2re(atan(101+1021+311i+10311i))+2iim(atan(101+1021+311i+10311i)))
/ / ________________ \\ / / ________________\\ / / ________________ \\ / / ________________ \\ / / ________________ \\ / / ________________\\ / / ________________ \\ / / ________________ \\
| | ___ / ____ ____|| | | ____ ___ / ____ || | | ___ / ____ ____|| | | ___ / ____ ____|| | | ___ / ____ ____|| | | ____ ___ / ____ || | | ___ / ____ ____|| | | ___ / ____ ____||
| | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 || | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 || | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 ||
- 2*re|atan|- -- + ------------------------- + ----------|| + 2*re|atan|-- - ---------- + -------------------------|| + 2*re|atan|-- - ------------------------- + ----------|| + 2*re|atan|-- + ------------------------- + ----------|| - 2*I*im|atan|- -- + ------------------------- + ----------|| + 2*I*im|atan|-- - ---------- + -------------------------|| + 2*I*im|atan|-- - ------------------------- + ----------|| + 2*I*im|atan|-- + ------------------------- + ----------||
\ \ 10 10 10 // \ \10 10 10 // \ \10 10 10 // \ \10 10 10 // \ \ 10 10 10 // \ \10 10 10 // \ \10 10 10 // \ \10 10 10 //
−2re(atan(−101+1021−311i+10311i))+2re(atan(101−1021+311i+10311i))+2re(atan(101−10311i+1021−311i))+2re(atan(101+1021+311i+10311i))−2iim(atan(−101+1021−311i+10311i))+2iim(atan(101−10311i+1021−311i))+2iim(atan(101−1021+311i+10311i))+2iim(atan(101+1021+311i+10311i))
/ / / ________________ \\ / / ________________ \\\ / / / ________________\\ / / ________________\\\ / / / ________________ \\ / / ________________ \\\ / / / ________________ \\ / / ________________ \\\
| | | ___ / ____ ____|| | | ___ / ____ ____||| | | | ____ ___ / ____ || | | ____ ___ / ____ ||| | | | ___ / ____ ____|| | | ___ / ____ ____||| | | | ___ / ____ ____|| | | ___ / ____ ____|||
| | | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 || | | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 ||| | | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 || | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 ||| | | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 ||| | | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 |||
|- 2*re|atan|- -- + ------------------------- + ----------|| - 2*I*im|atan|- -- + ------------------------- + ----------|||*|2*re|atan|-- - ---------- + -------------------------|| + 2*I*im|atan|-- - ---------- + -------------------------|||*|2*re|atan|-- - ------------------------- + ----------|| + 2*I*im|atan|-- - ------------------------- + ----------|||*|2*re|atan|-- + ------------------------- + ----------|| + 2*I*im|atan|-- + ------------------------- + ----------|||
\ \ \ 10 10 10 // \ \ 10 10 10 /// \ \ \10 10 10 // \ \10 10 10 /// \ \ \10 10 10 // \ \10 10 10 /// \ \ \10 10 10 // \ \10 10 10 ///
(−2re(atan(−101+1021−311i+10311i))−2iim(atan(−101+1021−311i+10311i)))(2re(atan(101−10311i+1021−311i))+2iim(atan(101−10311i+1021−311i)))(2re(atan(101−1021+311i+10311i))+2iim(atan(101−1021+311i+10311i)))(2re(atan(101+1021+311i+10311i))+2iim(atan(101+1021+311i+10311i)))
/ / / ________________ \\ / / ________________ \\\ / / / ________________\\ / / ________________\\\ / / / ________________ \\ / / ________________ \\\ / / / ________________ \\ / / ________________ \\\
| | | ___ / ____ ____|| | | ___ / ____ ____||| | | | ____ ___ / ____ || | | ____ ___ / ____ ||| | | | ___ / ____ ____|| | | ___ / ____ ____||| | | | ___ / ____ ____|| | | ___ / ____ ____|||
| | | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 || | | 1 \/ 2 *\/ 1 - 3*I*\/ 11 3*I*\/ 11 ||| | | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 || | |1 3*I*\/ 11 \/ 2 *\/ 1 - 3*I*\/ 11 ||| | | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 ||| | | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 || | |1 \/ 2 *\/ 1 + 3*I*\/ 11 3*I*\/ 11 |||
-16*|I*im|atan|- -- + ------------------------- + ----------|| + re|atan|- -- + ------------------------- + ----------|||*|I*im|atan|-- - ---------- + -------------------------|| + re|atan|-- - ---------- + -------------------------|||*|I*im|atan|-- - ------------------------- + ----------|| + re|atan|-- - ------------------------- + ----------|||*|I*im|atan|-- + ------------------------- + ----------|| + re|atan|-- + ------------------------- + ----------|||
\ \ \ 10 10 10 // \ \ 10 10 10 /// \ \ \10 10 10 // \ \10 10 10 /// \ \ \10 10 10 // \ \10 10 10 /// \ \ \10 10 10 // \ \10 10 10 ///
−16(re(atan(−101+1021−311i+10311i))+iim(atan(−101+1021−311i+10311i)))(re(atan(101−10311i+1021−311i))+iim(atan(101−10311i+1021−311i)))(re(atan(101−1021+311i+10311i))+iim(atan(101−1021+311i+10311i)))(re(atan(101+1021+311i+10311i))+iim(atan(101+1021+311i+10311i)))
-16*(i*im(atan(-1/10 + sqrt(2)*sqrt(1 - 3*i*sqrt(11))/10 + 3*i*sqrt(11)/10)) + re(atan(-1/10 + sqrt(2)*sqrt(1 - 3*i*sqrt(11))/10 + 3*i*sqrt(11)/10)))*(i*im(atan(1/10 - 3*i*sqrt(11)/10 + sqrt(2)*sqrt(1 - 3*i*sqrt(11))/10)) + re(atan(1/10 - 3*i*sqrt(11)/10 + sqrt(2)*sqrt(1 - 3*i*sqrt(11))/10)))*(i*im(atan(1/10 - sqrt(2)*sqrt(1 + 3*i*sqrt(11))/10 + 3*i*sqrt(11)/10)) + re(atan(1/10 - sqrt(2)*sqrt(1 + 3*i*sqrt(11))/10 + 3*i*sqrt(11)/10)))*(i*im(atan(1/10 + sqrt(2)*sqrt(1 + 3*i*sqrt(11))/10 + 3*i*sqrt(11)/10)) + re(atan(1/10 + sqrt(2)*sqrt(1 + 3*i*sqrt(11))/10 + 3*i*sqrt(11)/10)))
x1 = -0.785398163397448 - 1.49661142306319*i
x2 = 2.35619449019234 - 1.49661142306319*i
x3 = -0.785398163397448 + 1.49661142306319*i
x4 = 2.35619449019234 + 1.49661142306319*i
x4 = 2.35619449019234 + 1.49661142306319*i