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- Longman Instant Ex 18.5
- forum-2
- CHALLENGE -How are the graphs of f(x) & its inverse related?
- Parabola: Geometric Property (II)
- Unit 1 Scavenger Hunt
- 선분의 수직 이등분 선 상의 점으로부터 선분의 양 끝점까지의 거리는 같다.(Given a line segment, distances from a point on the perpendicular bisector to the each end point of the line segment are same.)