@prefix concept: <https://w3id.org/kmath/concept/> .
@prefix math: <https://w3id.org/kmath/> .
@prefix problem_type: <https://w3id.org/kmath/problem_type/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skill: <https://w3id.org/kmath/skill/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix solution_pattern: <https://w3id.org/kmath/solution_pattern/> .

solution_pattern:trig_inequality_via_graph a math:SolutionPattern ;
    rdfs:label "그래프로 삼각부등식 풀기"@ko ;
    skos:definition "경계가 되는 방정식을 먼저 풀고 그래프의 위아래로 해 구간을 고르는 전략"@ko ;
    skos:editorialNote "2026-09-28 GRIP 대수 개념서와 시발점 워크북 대수의 풀이를 분석해 추가했다(근거: GRIP 06-12, 06-13 (PDF p146–148), GRIP 06 특강 예제 (PDF p150), 시발점 Theme 19 #30, #31, 시발점 STEP 2 #9). 교사 검토가 필요하다."@ko ;
    skos:prefLabel "그래프로 삼각부등식 풀기"@ko ;
    math:appliesTo problem_type:trig_inequality_solve ;
    math:hasStep [ ],
        [ ],
        [ ],
        [ ] ;
    math:requiresConcept concept:trigonometric_inequality ;
    math:usesSkill skill:graph_position_inequality_reading,
        skill:inequality_interval_intersection,
        skill:substituted_variable_range,
        skill:unit_circle_reading .