Detailed study of trigonometric identities, graphs of trigonometric functions, and solving trigonometric equations.

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Exponential/Logs + Combinatorics

Because earthquake intensity can vary by a factor of millions, a linear scale would be impossible to graph or communicate. By using a base-10 logarithmic scale, an increase of one unit (e.g., from magnitude 5 to 6) represents a tenfold increase in amplitude. Chemistry and pH: