I am a college physics grad. For many subtopics of precalculus or calculus, the following statement applies to me:(adsbygoogle = window.adsbygoogle || []).push({});

"I can easily solve problems that involve X, but I can't really tell you what X is or why it matters."

I'd like to spend some spare time to gain a strong understanding of the central concepts of precalculus or calculus that I only learned superficially.

Can anyone recommend a text to work from, based on the following criteria?

- Covers precalculus or Calculus BC material.

- Focused only on the fundamentals and central concepts. For example, I want to understand integration by substitution, but I don't need or want to review every substitution technique.

- NOT focused on (1) tricks, (2) rote problem solving, or (3) teaching general problem solving techniques

- Ideal for self study

Thanks!

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# Here's the type of textbook I'm looking for. Does it exist?

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