For small $\theta$ in radians, which approximation is correct?

$\cos\theta \approx 1 - \frac{1}{2}\theta^2$

In the decomposition of $\frac{1}{(x - 1)^2}$, which terms are needed?

$\frac{A}{x - 1} + \frac{B}{(x - 1)^2}$

12questions. Pick an answer and you'll see why right away.

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