Proving trigonometric identities Animation Play

Proving trigonometric identities Whiteboard exercise Play

Proving trigonometric identity using the Pythagorean identity Whiteboard exercise Play

Quadratic equations Class activity Play

Quadratic equations Whiteboard presentation Play

Quadratic equations and inequalities Whiteboard exercise Play

Quadratic equations that have no solution Whiteboard exercise Play

Quadratic equations that have solution Whiteboard exercise Play

Range of trigonometric functions Student activity Play

Range of trigonometric functions Whiteboard exercise Play

Rational equations Whiteboard exercise Play

Reading from the graph of the cosine function Student activity Play

Reading properties of the cosine from the graph Whiteboard exercise Play

Recalling trigonometric facts Whiteboard exercise Play

Recalling trigonometric facts Student activity Play

Reciprocals of basic trigonometric ratios Student activity Play

Reduction formulas Animation Play

Reduction formulas due to periodicity Whiteboard exercise Play

Reduction formulas due to periodicity Student activity Play

Reduction formulas for trigonometric functions Whiteboard exercise Play

Reduction formulas for trigonometric functions Student activity Play

Rewriting the trigonometric expressions Animation Play

Rewriting trigonometric expressions as rcos(A – α) Whiteboard exercise Play

Rewriting trigonometric expressions as rcos(A – α) Student activity Play

Rewriting trigonometric expressions as rsin(A + α) Whiteboard exercise Play