x^{''}+2.25x^'+0.14x=0,x^'(0)=1,x(0)=2

Lösung

x^{^{''}} + 2.25 x^{^{'}} + 0.14 x = 0, x^{^{'}} (0) = 1, x (0) = 2

x = - \frac{( 40 1801 - ( 65 - 1801 ) ( 45 + 1801 ) ) ( 1801 + 45 ) e ^{\frac{( - 45 + 1801 ) t}{40}}}{224 1801} - \frac{65 - 1801}{1801} e^{- \frac{( 45 + 1801 ) t}{40}}

Schritte zur Lösung

x^{''} (t) + 2.25 x^{'} (t) + 0.14 x = 0

Solve linear ODE:

x = - \frac{( 40 1801 - ( 65 - 1801 ) ( 45 + 1801 ) ) ( 1801 + 45 ) e ^{\frac{( - 45 + 1801 ) t}{40}}}{224 1801} - \frac{65 - 1801}{1801} e^{- \frac{( 45 + 1801 ) t}{40}}

x = - \frac{( 40 1801 - ( 65 - 1801 ) ( 45 + 1801 ) ) ( 1801 + 45 ) e ^{\frac{( - 45 + 1801 ) t}{40}}}{224 1801} - \frac{65 - 1801}{1801} e^{- \frac{( 45 + 1801 ) t}{40}}

t an g e n t f (x) = x^{3} - 2 x^{2} - 3 x, (1, - 4)

\frac{\partial}{\partial x} (x y - z)

f (x) = 7 x^{2}

s l o p e (- 5, 2), (5, 6)

in v erse l a pl a ce t^{\frac{1}{2}}