Ответы параграфа 8

2184.y = C1 e x + C2 e 3x.
2185.y = (C1 + C2 x) e 2x
2186.y = e 2x·(A cos 3x + B sin 3x).
2187.y = C1 e 2x + C2 e - 2x = A ch 2x + B sh 2x.
2188.y = A cos 2x + B sin 2x = a sin (2x + φ).
2189.y = C1 + C2 e - 4x.
2190.x = C1 e t + C2 e - 4t.
2191.
2192.s = e - t (A cos t + B sin t); s = e - t (cos t + 2 sin t).
2193.y = C1 e x + (C2 + C3x) e 2x.
2194.y = C1 ch 2x + C2 sh 2x + C3 cos 2x + C4 sin 2x.
2195.
2196.y = (C1 + C2x + C3x²) e - ax.
2197.y = A sin x·sh x + B sin x·ch x + C cos x·sh x + D cos x·ch x.
2198.
2199.Отклонение период
2200. период
2201.x = a e - kx, где
2202.y = C1e - 2x + C2e - x.
2203.y = (C1x + C2) e - ax
2204.y = e - x·(C1 cos 2x + C2 sin 2x).
2205.x = C1e 3t + C2e - t.
2206.x = C1 cos ωt + C2 sin ωt.
2207.s = C1 + C2 e- at.
2208.
2209.y = C1 e - x + (C2x + C3)e 2x.
2210.y = C1 e 2x + C2 e - 2x + C3 cos x + C4 sin x.
2211.y = (C1 + C2x) cos 2x + (C3 + C4x) sin 2x
2212.