Evaluate: [2 ^(-1) + 3^(-1) + 4^(-1)]^(-1) is
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Step-by-step explanation:
2^(-1)=1/2. 3^(-1)=1/3.4^(-1)=1/4. [2^(-1)+3^(-1)+4^(-1)]^(-1)=1/2^(-1)+3^(-1)+4^(-1) 2^(-1) + 3^(-1) + 4^(-1) =1/2+1/3+1/4=13/12. [2 ^(-1) + 3^(-1) + 4^(-1)]^(-1)]=1÷12/13=13/12. HOPE THIS HELPS YOU
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