Cosine Course
Dive deep into cosine from unit circle fundamentals to advanced identities and modeling. This course equips math pros to analyze graphs, create precise periodic models for motion and daylight, and tackle right and oblique triangle problems with confidence and accuracy using practical tools and visuals.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Cosine Mastery Course provides a focused, practical path to master cosine from basics to real-world applications. Grasp the unit circle, symmetry, key angles, and identities, then confidently read and sketch transformed graphs. Apply cosine to periodic models, triangle problems, and beginner explanations with reliable examples, visuals, and assessments.
Elevify advantages
Develop skills
- Master cosine graphs: read, sketch, and transform y = A cos(ωx + φ) + C quickly.
- Model real cycles: create cosine models for motion, daylight, and rotations.
- Apply cosine in triangles: solve geometry problems with cos and law of cosines.
- Use core trig identities: simplify, transform, and solve cosine equations.
- Teach cosine clearly: craft visuals, examples, and explanations for beginners.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students are saying
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