Question

following nonlinear system: x' = 2 sin y, y'= x^2 + 2y − 1 find all...

following nonlinear system:

x' = 2 sin y,

y'= x^2 + 2y − 1

find all singular points in the domain x, y ∈ [−1, 1],determine their types and stability.

Find slopes of saddle separatrices.

Use this to sketch the phase portrait in the domain x, y ∈ [−1, 1].

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