Useful Inequalities Always a. \sin{x} \le 1 a. \csc{x} \ge 1 a. \cos{x} \le 1 a. \sec{x} \ge 1 a. \sin{x} \le \tan{x} a. n^2 1 \le ...

Useful Limits ...for working with sequences and series. Exponentials \lim {h \rightarrow 0} (1 h)^{\frac{1}{h}} e \lim {n \rightarrow \infty} (1 \frac{1}{n} ...