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I really don't know what "precalc" is, but have heard that it covers some algebra topics.
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<p>Varies widely by school, or even by class. In its traditional form, it's a glorified review class, just like pre-algebra. Also like pre-algebra, a huge waste of time, unless you struggled the first time around, in which case it's probably useful to get that review. My precalc class was a good one - we covered topics that we hadn't seen before, like analytic geometry, matrices, trig proofs, the polar coordinate system, and limits.</p>