SOLUTION: 5^-1 + 2^-1-3^0. ANSWER: -3/10 anyone knows why the answer is -3/10 please give a full break down

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Question 193581: 5^-1 + 2^-1-3^0.
ANSWER: -3/10
anyone knows why the answer is -3/10 please give a full break down

Answer by orca(409)   (Show Source): You can put this solution on YOUR website!
Note that:

And

So

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