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sparrgrovekyle
09.08.2021 •
Mathematics
5. Solve the differential equation y" - 5y "+7y'-3y=0.
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Ответ:
The differential equation
y''' - 5y'' + 7y' - 3y = 0
has characteristic equation
r ³ - 5r ² + 7r - 3 = (r - 3) (r - 1)² = 0
with roots at r = 3 and r = 1 (with multiplicity 2), so that the characteristic solution to the DE is
y = C₁ exp(3x) + C₂ exp(x) + C₃ x exp(x)
Ответ:
Simplifying
42y = 8526
Solving
42y = 8526
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Divide each side by '42'.
y = 203
Simplifying
y = 203