Trigonometry: Identities & Values
by Math Bench
Exact unit-circle values plus the identities that carry precalculus: Pythagorean, reciprocal, double-angle, and parity.
♠ Try 3 cards right here
What’s inside
- What is the exact value of sin 30°?
- 1/2
- What is the exact value of cos 45°?
- √2/2
- What is the exact value of sin 60°?
- √3/2
16 cards in the full deck, free in the app with spaced repetition doing the scheduling.
More Math on the Table
SAT Math: Formulas You Must Know
Test Prep LabThe formulas and number facts the SAT expects you to carry in your head, from linear equations to circle geometry. Aligned to the College Board Math domain specifications.
Geometry: Area & Volume Formulas
Math BenchThe core area, perimeter, volume, and surface-area formulas every geometry student needs cold, from circles to spheres.
Mental Math: Multiplication Tricks
Math BenchFast multiplication shortcuts: doubling and halving, the elevens trick, round-and-adjust, and squares ending in five.
Study Trigonometry: Identities & Values properly
Free on iOS, with scheduling that remembers exactly which cards you struggle with.
Free on iOS · Android waitlist open