Given that $$\(150^{x}=1\)$$ (a) write down the value of $$\(x\)$$. $$\[ x= \]$$ (1) Given that $$\(3^{-8} \div 3^{-6}=3^{n}\)$$ (b) find the value of $$\(n\)$$. $$\[ n= \]$$ (1)

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