Evaluate: [{1/2}^-1+{1/3}^-1]^-1
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1
Answer:
1/5
Step-by-step explanation:
[{1/2}^-1+{1/3}^-1]^-1
=>[1/{1/2}+1/{1/3}]^-1
=>{2+3}^-1
=>1/5
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