KnowraTrigonometric substitutionLinked fromLinked fromThe 7 pages that link to Trigonometric substitution, each with the reason it gives.All 7Broader topic 1Related 5Compared with 1Trigonometric functionsRelated: It exploits identities such as 1 + tan²(x) = sec²(x) to simplify radicals.TangentRelated: The substitution x = a tan(θ) can simplify radicals involving a² + x².Integration by partsCompared with: It simplifies radical structure by changing variables rather than redistributing differentiation.Trigonometric identityRelated: Identities simplify the substitutions and convert resulting expressions back.Integration by substitutionBroader topic: It is a specialized substitution for integrands involving characteristic quadratic radicals.Pythagorean trigonometric identityRelated: The identity turns expressions such as 1 − sin²θ into cos²θ.Law of cotangentsRelated: Cotangent substitutions can turn angle constraints into algebraic relations.