Given that a > b then the relation Ma[md(a), mn(a,b)] = mn[a, md(Ma(a,b))] does not hold if
Explanation:
For a > b, the given equation reduces to Ma[|a|, b] = mn[a, |a|].
If b < a < 0, then |b| > |a| > 0 > a > b.
∴ Ma [|a|, b] = |a| and mn [a, |a|] = a.
Hence, option (a) is correct.
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