Khan Academy

Radians & degrees (K-A)

Radians to degrees (K-A)

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

Features of sinusoidal functions (K-A)

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

Sinusoidal function from graph (K-A)

Trig word problem: length of day (phase shift) (K-A)

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

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

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

Tangent identities: periodicity (K-A)

Tangent identities: symmetry (K-A)

Proof of the cosine angle addition identity (K-A)

Proof of the Pythagorean trig identity (K-A)

Proof of the sine angle addition identity (K-A)

Review of trig angle addition identities (K-A)

Using the cosine angle addition identity (K-A)

Using the cosine double-angle identity (K-A)

Using the Pythagorean trig identity (K-A)

Multiplying & dividing powers (integer exponents) (K-A)

Powers of products & quotients (integer exponents) (K-A)

Multiplying & dividing in scientific notation (K-A)

Multiplying three numbers in scientific notation (K-A)

Scientific notation example: 0.0000000003457 (K-A)

Scientific notation examples (K-A)