Determine the rate law for a reaction, \(2\text{NO}+\text{Br}_{2}\rightarrow 2\text{NOBr}\) that occurs in following two steps.
i) \(\text{NO}+\text{Br}_{2}\rightarrow \text{NOBr}_{2}\) (fast)
ii) \(\text{NOBr}_{2}+\text{NO}\rightarrow 2\text{NOBr}\) (slow)