Answer:
greater than or equal and less than or equal
Explanation:
We assume that all the market belong from long run equilibrium.So the quantity supplied of the market in a duopoly should be either greater or equivalent to the quantity supplied of the market in the monopoly and it should be less or equivalent to the quantity supplied of the market in the competitive market as it is the under competitive market where P = mc
And, under monopoly, there is the condition of the profit maximiation i.e. MR = MC