Khan Academy

Solving for an angle with the law of cosines (K-A)

Proof of the law of sines (K-A)

Solving for a side with the law of sines (K-A)

Solving for an angle with the law of sines (K-A)

Amplitude & period of sinusoidal functions from equation (K-A)

Midline, amplitude, and period review (K-A)

Proof of the Pythagorean trig identity (K-A)

Pythagorean identity review (K-A)

Using the Pythagorean trig identity (K-A)

Laws of sines and cosines review (K-A)

Trig word problem: stars (K-A)

Trig values of special angles (K-A)

The trig functions & right triangle trig ratios (K-A)

Trig unit circle review (K-A)

Unit circle (K-A)

Comparing functions: shared features (K-A)

Comparing functions: x-intercepts (K-A)

Comparing maximum points of quadratic functions (K-A)

End behavior of algebraic models (K-A)

Periodicity of algebraic models (K-A)

Symmetry of algebraic models (K-A)

Symmetry of algebraic models -video (K-A)

Interpreting equations graphically (example 2) (K-A)

Interpreting equations graphically (K-A)

Solving equations graphically (1 of 2) (K-A)