Trigonometric Hand Trick This is an easy way to remember the values of common values of trigonometric functions in the first quadrant.

Trigonometric Hand Trick This is an easy way to remember the values of common values of trigonometric functions in the first quadrant.

SparkNotes: Precalculus: Trigonometric Functions: Trigonometric Functions

SparkNotes: Precalculus: Trigonometric Functions: Trigonometric Functions

Trigonometric Functions: Soh-Cah-Toa: shows how to relate the sides of a right triangle using the hypotenuse, adjacent and or opposite sides

Sine, Cosine, Tangent, explained and with Examples and practice identifying opposite, adjacent sides and hypotenuse

trig functions chart | Trigonometric Equations Center

Do You Still Know The Basic Math? – Best Online Puzzles and Games

10 Secret Trig Functions Your Math Teachers Never Taught You...(because they are from a pre-calculator world) A diagram with a unit circle and more trig functions than you can shake a stick at. (It's well known that you can shake a stick at a maximum of 8 trig functions.) The familiar sine, cosine, and tangent are in blue, red, and, well, tan, respectively. The versine is in green, and the exsecant is in pink. Excosecant and coversine are also in the image.

10 Secret Trig Functions A diagram with a unit circle and more trig functions…

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