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For Julian I

Calculus Level 1

\[\large \lim_{h \rightarrow 0} \frac{e^{2h}-1}{h} = \ ? \]

Bonus: Don't use the hospital.

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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Jake Lai

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