Study of triangles and trigonometric functions including sine, cosine, and tangent.
Make flashcards for key formulas and ratios like SOH-CAH-TOA and the unit circle values. Use mnemonic devices and practice problems regularly. The more you practice, the faster you’ll remember the relationships between sides and angles.
Using the phrase 'Some Old Horse Came A Hopping Through Our Alley' to remember SOH-CAH-TOA.
Drawing the unit circle from memory before a test.