Trig Formulas to Memorize

ACT Math · Axiom Academy

FORMULA SHEET Trig Formulas to Memorize Every trig formula you need for the ACT — ratios, identities, the unit circle, graphs, and the laws — all in one place. Unit Circle Values for Key Angles Law of Sines and Law of Cosines Use this to test yourself — cover the sheet above and try to recall each formula. SOHCAHTOA definitions (sin, cos, tan) Reciprocal functions (csc, sec, cot) Amplitude, period, phase shift, vertical shift

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