19. If is acute,
tan =
5
5 cos ec’e+sece
cos ec²0-sec
ec
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Step-by-step explanation:
Chromatography equipment includes all the components needed for separation: columns, frits, flow cells, pumps, detector, collectors and software to complete systems used for High Performance Liquid Chromatography (HPLC), Gas chromatography (GC) and Liquid Chromatography and Mass Spectrophotometers (LC-MS).
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