Pythagorean Identity
For any angle θ, the square of the sine plus the square of the cosine equals 1. Formula: sin² θ + cos² θ = 1. This is the most fundamental trigonometric identi…
Syllabus path: Functions › Basic Elementary Functions › Trigonometric Functions
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This formula is aligned to the CSCA undergraduate admissions exam syllabus. Continue with the linked tutorial and topic practice.
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CSCA Mathematics Formula Reference
Formula and explanation
For any angle θ, the square of the sine plus the square of the cosine equals 1. Formula: sin² θ + cos² θ = 1. This is the most fundamental trigonometric identity, derived from the Pythagorean theorem.
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…
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