VMLC

Sine, Cosine, and Tangent

Explaining the trigonometric ratios of right triangles for sine, cosine, and tangent

CosineFundamental Trigonometric IdentityRight TriangleSineTangentTrigonometric RatiosTrigonometryTrigonometry Series

Finding the six trigonometric ratios for a right triangle

Fundamental Trigonometric IdentityRight TriangleTrigonometric RatiosTrigonometryTrigonometry Series

Using trig to find the length of the side of a right triangle given an angle and side length

Right TriangleTangentTrigonometric RatiosTrigonometryTrigonometry Series

Using trig to find an angle in a right triangle with two given sides

ArccosineCosineInverse TrigonometryTrigonometric RatiosTrigonometryTrigonometry Series

Using the Pythagorean Trig Identity to derive the secondary Pythagorean Identities

Fundamental Trigonometric IdentityTrigonometric RatiosTrigonometryTrigonometry Series

Using the double angle identities for cosein to derive the half-angle identities for sine and cosine

SineTrigonometric RatiosTrigonometryTrigonometry Series

Using the Reciprocal, Ratio, and Pythagorean Identities to verify a trig identity

Fundamental Trigonometric IdentityTrigonometric RatiosTrigonometryTrigonometry Series

Proving a trig identity involving sine, cosine, and cotangent

Fundamental Trigonometric IdentityTrigonometric RatiosTrigonometryTrigonometry Series