given that x+y+z=3 and xy+yz+zx=a . find that value of a for which a(max) - a(min)= 8
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Originally Posted by geniusgarvil given that x+y+z=3 and xy+yz+zx=a . find that value of a for which a(max) - a(min)= 8 This surface has its peak at {1, 1, 3-a} and its min at -infinity: So, please explain what you mean by a(min)
a(min) means a's minimum value.
So a(min)=-infinity...it appears that perhaps a(min) should have an (x,y) also assigned to it otherwise the function's min is -infinity.