Chapter 7: Identities, Equations, and Sine Waves

A staging page for unit circle identities, trig equations, and sinusoidal graph reading.

Problems Covered

Unit Circle ValuesPlaceholder for exact trig values. Verify an IdentityPlaceholder for algebraic trig proof. Sine Wave ReadingAmplitude, period, midline, and phase shift.

7.3 Sine Waves

A sine wave model usually has amplitude, period, midline, and phase shift. This section will grow into the classic graph-reading page.

y=A\sin(B(x-C))+D
Core Concept

The amplitude measures distance from the midline, and the period measures the length of one full cycle.