Equality of tangent and cotangent Whiteboard exercise Play

Finding  cosx Whiteboard exercise Play

Finding  cotx Whiteboard exercise Play

Finding  sinx Whiteboard exercise Play

Finding  tanx Whiteboard exercise Play

Identities for trigonometric functions Class activity Play

Identities for trigonometric functions Whiteboard presentation Play

Justification of the cotangent function identity Animation Play

Justification of the tangent function identity Animation Play

Proving trigonometric identities Animation Play

Proving trigonometric identity using the Pythagorean identity Whiteboard exercise Play

Some consequences of the identities Student activity Play

The cotangent and the cosecant Student activity Play

The cotangent and the cosecant Animation Play

The cotangent function Whiteboard exercise Play

The Pythagorean identity Whiteboard exercise Play

The Pythagorean identity revisited Student activity Play

The tangent and cotangent functions revisited Student activity Play

The tangent and the cotangent are inversely proportional Student activity Play

The tangent and the cotangent as inversely proportional functions Whiteboard exercise Play

The tangent and the secant Animation Play

The tangent and the secant Student activity Play

The tangent function Whiteboard exercise Play

Trigonometric identities Whiteboard exercise Play

Trigonometric identity for tangent and cotangent Simulation Play