z=f(x+ay)+g(x-ay) Prove that z_yy = a^2 z_xx | Partial differentiation engineering mathematics,B.Sc.
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Examples on Partial Differentiation || Partial differentiation engineering mathematics B.Sc.
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20. Partial Derivatives | Problem#3 | Most Important Problem | Partial Differentiation
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Total differentiation example|| chain rule || partial differentiation bsc 1st year and engineering
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19. Partial Derivatives | Problem#2 | Most Important Problem | Partial Differentiation
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If u=f(r) where r2=x2+y2+z2 then dx2d2u+dy2d2u+dz2d2u=f"(r)+r4f′(r) partial differentiation
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Partial Differentiation| BCA Maths | If z=f(x+ay)+g(x-ay), Prove that del^2z/dely^2=a^2del^2z/delx^2
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Example 4 on PDE If u=tan(y+ax)+(y-ax)^(3/2),prove that(∂^2 u)/(∂x^2)=a^2 (∂^2 u)/(∂y^2)[ Hindi ]
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