Identity Toolkit Expansion

Trigonometry · Axiom Academy

Build complex trigonometric proofs by combining basic identities. Watch how simple tools create powerful mathematics! Every trigonometric proof begins with these foundation identities. Click on each card to explore them! Which identity would help transform each expression? Select the correct identity for the transformation shown. Watch how we combine identities to prove a more complex relationship. Click the button to see each step! Drag the steps into the correct order to complete this proof. Each step must logically follow from the previous one. Understanding how identities build on each other reveals the elegant structure of trigonometry.

This is the written version of the interactive lesson above. See the full Trigonometry course.