Pauline, A basic foundation in trigonometry is pretty necessary for Calculus. Many of my peers struggled with certain problems that required them to use trigonometry, a class they had not taken yet...

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3. About learning trigonometry

Pauline, I would suggest taking linear algebra before pre-calculus and AP Calculus classes. You need an understanding about the way graphs function or how a function works based on its equation to ...

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2. Study Group
3. About liner algebra