Solución detallada
-
Se aplica la regla de la derivada parcial:
y .
Para calcular :
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La derivada del seno es igual al coseno:
Para calcular :
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Se aplica la regla de la derivada de una multiplicación:
; calculamos :
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La derivada del coseno es igual a menos el seno:
; calculamos :
-
Derivado es.
Como resultado de:
Ahora aplicamos la regla de la derivada de una divesión:
-
Simplificamos:
Respuesta:
-x / x x\ -2*x
e \e *sin(x) - cos(x)*e /*e *sin(x)
------*cos(x) + ------------------------------------
cos(x) 2
cos (x)
$$\frac{e^{- x}}{\cos{\left(x \right)}} \cos{\left(x \right)} + \frac{\left(e^{x} \sin{\left(x \right)} - e^{x} \cos{\left(x \right)}\right) e^{- 2 x} \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}}$$
/ // sin(x)\ (-cos(x) + sin(x))*sin(x) \ \
| ||-1 + ------|*(-cos(x) + sin(x)) + ------------------------- + cos(x) + sin(x)|*sin(x) |
| \\ cos(x)/ cos(x) / | -x
|-2*cos(x) + --------------------------------------------------------------------------------------- + sin(x)|*e
\ cos(x) /
------------------------------------------------------------------------------------------------------------------
cos(x)
$$\frac{\left(\frac{\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) + \frac{\left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \sin{\left(x \right)} + \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right) e^{- x}}{\cos{\left(x \right)}}$$
/ / / 2 \ \ \
| | | sin (x) sin(x)| | |
| | / sin(x)\ / sin(x)\ 2*(-cos(x) + sin(x))*|1 + ------- - ------| / sin(x)\ | |
| | 2 |-1 + ------|*(-cos(x) + sin(x)) 2*|-1 + ------|*sin(x) | 2 cos(x)| 2 |-1 + ------|*(-cos(x) + sin(x))*sin(x)| |
| | 4*sin(x) 3*(-cos(x) + sin(x)) 6*sin (x) \ cos(x)/ 4*(-cos(x) + sin(x))*sin(x) \ cos(x)/ \ cos (x) / 3*sin (x)*(-cos(x) + sin(x)) \ cos(x)/ | |
| // sin(x)\ (-cos(x) + sin(x))*sin(x) \ |2 - -------- + -------------------- + --------- - -------------------------------- - --------------------------- + ---------------------- + ------------------------------------------- + ---------------------------- + ---------------------------------------|*sin(x) |
| 3*||-1 + ------|*(-cos(x) + sin(x)) + ------------------------- + cos(x) + sin(x)| | cos(x) cos(x) 2 cos(x) 2 cos(x) cos(x) 3 2 | |
| \\ cos(x)/ cos(x) / \ cos (x) cos (x) cos (x) cos (x) / 3*(-cos(x) + sin(x))*sin(x)| -x
|-1 + ---------------------------------------------------------------------------------- + ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - ---------------------------|*e
| cos(x) cos(x) 2 |
\ cos (x) /
$$\left(- \frac{3 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} + \frac{3 \left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) + \frac{\left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \sin{\left(x \right)} + \cos{\left(x \right)}\right)}{\cos{\left(x \right)}} + \frac{\left(\frac{\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{\left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right)}{\cos{\left(x \right)}} + \frac{2 \left(\frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} + \frac{2 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \left(\frac{\sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{\sin{\left(x \right)}}{\cos{\left(x \right)}} + 1\right)}{\cos{\left(x \right)}} + \frac{3 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin^{2}{\left(x \right)}}{\cos^{3}{\left(x \right)}} - \frac{4 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right) \sin{\left(x \right)}}{\cos^{2}{\left(x \right)}} + \frac{3 \left(\sin{\left(x \right)} - \cos{\left(x \right)}\right)}{\cos{\left(x \right)}} + \frac{6 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{4 \sin{\left(x \right)}}{\cos{\left(x \right)}} + 2\right) \sin{\left(x \right)}}{\cos{\left(x \right)}} - 1\right) e^{- x}$$