cosine function
Chinese equivalent: 余弦函数
cosine function In a right triangle, the ratio of the length of the adjacent side to the hypotenuse; on the unit circle, the x - coordinate of the point at ang…
Syllabus path: Functions › Basic Elementary Functions › Trigonometric Functions
CSCA Exam Prep
This term is aligned to the CSCA undergraduate admissions exam syllabus. Continue with the linked tutorial and topic practice.
Practice related questions (16) · Start mock exam · Sign up — AI explanations · Membership plans
CSCA Mathematics Exam Glossary
Definition
cosine function In a right triangle, the ratio of the length of the adjacent side to the hypotenuse; on the unit circle, the x - coordinate of the point at angle θ.
Related tutorial and examples
Trigonometric Functions
Trigonometric Functions 1. Core Concepts Trigonometric Functions relate angles to side ratios in right triangles and coordinates on the unit circle. CSCA focuses on Sine ( sin ), Cosine ( cos ), and Tangent ( tan ). Unit Circle Definition: For a point P(x, y) on the unit circle c…
Plan your next CSCA study step
Use this topic in a focused practice set, then connect it to the exam requirements and timed papers.