Cosine Course
Master cosine from unit circle basics to advanced identities and modeling. Cosine Course helps math professionals analyze graphs, build accurate periodic models, and solve right and oblique triangle problems with confidence and precision.

flexible workload from 4 to 360h
valid certificate in your country
What will I learn?
Cosine Course gives you a focused, practical path to mastering cosine from first principles to real-world modeling. Build a solid grasp of the unit circle, symmetry, key angles, and core identities, then learn to read and sketch transformed graphs with confidence. Apply cosine to periodic models, triangle problems, and clear explanations for beginners, using polished examples, visuals, and assessment items you can rely on immediately.
Elevify advantages
Develop skills
- Master cosine graphs: read, sketch, and transform y = A cos(ωx + φ) + C fast.
- Model real cycles: build cosine models for motion, daylight, and rotations.
- Apply cosine in triangles: use cos and law of cosines to solve geometry problems.
- Use core trig identities: simplify, transform, and solve equations with cosine.
- Teach cosine clearly: design visuals, examples, and explanations for beginners.
Suggested summary
Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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