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pls help...thanx

1. Homework Statement Linearization 4x'' + 3 cos(x-y)y'' +2 y^2 sin(x-y) +3g sin (x) = 0 3 cos(x-y) y'' + 2y'' - 2y' ^2 sin(x-y) +g sin(y) =0 2. Homework Equations initial condition x(0) = y(0) = 03. The Attempt at a Solution the answer for this question is 4x'' + 3y'' + 3g x = 0 and...

sorry,there is another equation given which is 3 cos(x-y) y'' + 2y'' - 2y' ^2 sin(x-y) +g sin(y) =0 . but,the answer for this question is 4x'' + 3y'' + 3g x = 0 and 3x'' + 2y'' + gy = 0. pls help...

x'' means diferentiation twice.however, i think it should be solve by using taylor series.Am i correct??But i still can do it...

do you understand what "linearization" means? Homework Statement Linearization 4x'' + 3 cos(x-y)y'' +2 y^2 sin(x-y) +3g sin (x) = 0 Homework Equations initial condition x(0) = y(0) = 0 The Attempt at a Solution pls tell me the relevant steps to solve this problem.thanx