#How can I solve this Bernoulli differential equation?

14 messages · Page 1 of 1 (latest)

lyric granite
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(2xy - x^2y^2)dx + (1+x^2)dy = 0

naive nimbusBOT
sweet mortar
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First - rewrite as:
M dx + N dy = 0

Then check if it's exact - it's exact if:
∂M/∂y = ∂N/∂x

Then rearrange for dy/dx

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it's a bernoulli equation so it has the form:
dy/dx + P(x)y = Q(x) y^n

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let v = y^-1 for the bernoulli substitution

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sub in with

dv/dx = (-y^-2)(dy/dx)

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then simplify

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then find the integrating factor e^ integral(-P(x) dx)

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multiply through by the integrating factor, then integrate both sides

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then just simplify and solve for v, and then once you have v you can find y

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since v= 1/y

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sorry it's vague, that's the general process for bernoulli equations with a bit of specific info for ur equation

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@lyric granite if you have problems ill be back later tn just ping me

lyric granite
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Thanks I could solve it