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Posted: **Tue Jul 12, 2022 11:38 am**

: 1 By Using The Method Variation Of Parameters Solve The Non Homogeneous Equation Y 4y 4y E 2 By Using The Substitut 1 (11.8 KiB) Viewed 28 times

1.By using the method variation of parameters, solve the non-homogeneous equation. y+4y +4y=e.. 2.By using the substitution z = cos y, show that the differential equation dy cot y esey dx x can be SIMPLIFY to Hence, solve the original equation when y (1) = 0