The "College Algebra" [1] covers what high-school curriculum covered in either sophomore or junior year
College math should go back over high school math for the first 6 month or so, because chance are you where taught the math in an incomplete way in high school. The first 6 month or so of math when I was at university was basically starting back from square one and being re-taught everything we thought we already knew. But this time we where taught it correctly with formal proofs and everything put in its right context, and I'd certainly consider that not only college level, but also very useful.
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The "College Algebra" [1] covers what high-school curriculum covered in either sophomore or junior year
College math should go back over high school math for the first 6 month or so, because chance are you where taught the math in an incomplete way in high school. The first 6 month or so of math when I was at university was basically starting back from square one and being re-taught everything we thought we already knew. But this time we where taught it correctly with formal proofs and everything put in its right context, and I'd certainly consider that not only college level, but also very useful.