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Keywords from Image Description:
Parabel .svg de Eine Parabel mit Beschriftung fr geometrische Herleitung des Fokus en parabola with marks for derivation of the focus Parabel svg UTC Parabel svg McSush derivative work talk McSush Bytes no de Eine Parabel mit Beschriftung und Reflektionseigenschaft and reflections of rays Own work by uploader based on the Image