📐 Trig Cheatsheet & Quiz

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How to Use

Color Coding

Red = Sine (y-axis) | Blue = Cosine (x-axis) | Purple = Tangent (sin/cos)

Pink = Cosecant (1/sin) | Light Blue = Secant (1/cos) | Light Purple = Cotangent (1/tan)

On the unit circle: x = cos θ and y = sin θ

Cheatsheet Mode

Check identities to study. Selected items show details by default (click to collapse).

Presets: Use the dropdown to quickly load curated sets:

Quiz Mode

Cycles through selected identities. Reveals name → formula → details progressively.

Desktop Controls:

Mobile: Swipe left/right to navigate. Tap buttons to control.

Related Resources

📊 Interactive Unit Circle App - Visualize trig functions on the unit circle

sin cos tan csc sec cot