1. Solve a linear differential equation using the operator method
αẍ + βẋ + γx = f(t), x(t0) = A, ẋ(t0) = B
The function f(t) and values of coefficients α, β, γ, t0, x(t0), ẋ(t0) are taken from the table. 16.4
1.17. α = 1, β = 2, γ = 1, f(t) = 2e1−t, t0 = 1, x(t0) = 1, ẋ(t0) = −1
1.17. ẍ + 2ẋ + x = 2e1−t, x(1) = 1, ẋ(1) = −1

2. Solve the system of linear differential equations by the operator method
Table of functions f1(t), f2(t) and values ak, bk, ck, dk (k=1, 2), A, B, x(0), y(0). 16.5
2.17. a1 = 1, b1 = 0, c1 = 5, d1 = 2, f1(t) = 0, a2 = 0, b2 = 1, c2 = −1, d2 = 7, f2(t) = 0, x(0 ) = 1, y(0) = 1

Detailed solution. Designed in PDF format for easy viewing of IDZ solutions on smartphones and PCs. In MS Word (doc format) sent additionally.