Khan Academy

Graph of y=sin(x) (K-A)

Graph of y=tan(x) (K-A)

Intersection points of y=sin(x) and y=cos(x) (K-A)

Sine & cosine identities: periodicity (K-A)

Sine & cosine identities: symmetry (K-A)

Tangent identities: periodicity (K-A)

Tangent identities: symmetry (K-A)

Trig values of special angles (K-A)

Proof of the Pythagorean trig identity (K-A)

Pythagorean identity review (K-A)

Using the Pythagorean trig identity (K-A)

Features of sinusoidal functions (K-A)

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

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

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

Transforming sinusoidal graphs: vertical & horizontal stretches (K-A)

Transforming sinusoidal graphs: vertical stretch & horizontal reflection (K-A)

Sinusoidal function from graph (K-A)

Trig word problem: modeling annual temperature (K-A)

Trig word problem: modeling daily temperature (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)

Proof of the law of cosines (K-A)

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