Let a, b be the roots of x^2+(3-z) x-z=0 . Then rhe value of z for which a^2+b^2 is minimum

Let a, b be the roots of x^2+(3-z) x-z=0 . Then rhe value of z for whi

1.	Let a, b be the roots of x^2+(3-z) x-z=0 . Then rhe value of z for which a^2+b^2 is minimum
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