find the maximum value of x^m y^n z^p given that x+y+z=a
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Given :
x+y+z=a
To Find : maximum value
Solution:
Let say U =
∂U/∂x
∂U/∂y
∂U/∂z
x + y + z = a
=> ∂U/∂x = ∂U/∂y = ∂U/∂z = ∂a/∂x
Dividing by
=> myz = nxz = pxy
my = nx , mz = px , nz = py
x + y + z = a
x + nx/m + px/m = a
=> mx + nx + px = am
=> x = am /(m + n + p)
Similarly :
x = am/(m + n + p)
y = an/(m + n + p)
z = ap/(m + n + p)
Substitute these values in we get maximum value as
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Answer:
(a/m+n+p)^m+n+p•m^mn^np^p
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