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What happens when a function's output isn't calculable directly – e.g., at infinity – but we still need to understand its behavior? That's where limits come in. See more

\[ \lim_{x\to\infty} \dfrac{\sin x}x = \, ? \]

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\[\Large \lim_{x\rightarrow 0} \frac{|2x-1|-|2x+1|}{x}= \ ?\]

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\[f(x) = \large{\begin{cases} (x^2 - 4)/(x-2), & \text{ if } x < 2 \\ 2, & \text{ if } x = 2 \\ x^3-3x^2 + 2x + 4 , & \text{ if } x > 2 \\ \end{cases} } \]

Compute \(\displaystyle \lim_{x \to 2} f(x)\).

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\[ \large \lim_{x \to 0} \, \left \lfloor \dfrac{(\sin x) (\tan x)}{x^2} \right \rfloor = \ ? \]

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