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  • Someone from San Francisco, United States
    Someone from San Francisco, United States Thank you so much. This was on my homework and I was given the answer but had no idea how to solve it. Thanks again. for this answer
    10 hours ago
  • Someone from Central District, Hong Kong
    Someone from Central District, Hong Kong Thank you, Jim for this answer
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Jim H

I teach mathematics (and sometimes writing and talking and philosophy) at a small college in Pennsylvania.

754K karma · Northwestern Pennsylvania, USA
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Level 28 in Calculus Level 19 in Algebra Level 16 in Trigonometry Level 14 in Precalculus Level 10 in Socratic Meta Level 8 in Prealgebra Level 6 in Geometry Level 6 in English Grammar Level 4 in Physics Level 3 in Chemistry Level 3 in Statistics Level 1 in Organic Chemistry I Level 1 in Biology Level 1 in U.S. History
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