Question

If u is a homogenous function of degree,then
x 2∂2u
∂x2+y2∂2
u
∂y2 +z2∂2u
∂z2=…

(a)nu

(b)n(n-1)u

(c)n2
u

(d)Noneofthese​

Answer 1

Answer:

d) none of these

Step-by-step explanatio because none of them matches with the main body