If φ=φ(u,v)where u=e^x. cos y, v = e^x. sin y, show that ∂²φ/∂x²+∂²φ/∂y² = (u²+v²) [∂²φ/∂u²+∂²φ/∂v²]
Автор: Miah Pris Maths Academy
Загружено: 2025-04-07
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Hi friends, this video explains If φ=φ(u,v)where u =e^x. cos y, v = e^x. sin y show that ∂²φ/∂x²+∂²φ/∂y² = (u²+v²) [∂²φ/∂u²+∂²φ/∂v²]
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0:00 - If φ=φ(u,v)where u =e^x. cos y, v = e^x. sin y, show that ∂²φ/∂x²+∂²φ/∂y² = (u²+v²) [∂²φ/∂u²+∂²φ/∂v²]
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