trigonometry
Sum difference formulas
taught
Taught in
-
Sum and difference formulas
College Algebra
Requires
- reference-angles-exact-values required
- unit-circle-definitions required
Required by
- Angle between two lines required
- Combine sine and cosine required
- Double angle identities required
- Exact values via sum difference required
- Product sum identities required
Local knowledge map
Local knowledge map
Click to expand
Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.