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1. Using the data below, show the result of the following relational algebra expressions MessierCatalog Constellation MId Name M1 Crab Nebula M8 Lagoon Nebula M13

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1. Using the data below, show the result of the following relational algebra expressions MessierCatalog Constellation MId Name M1 Crab Nebula M8 Lagoon Nebula M13 Hercules Cluster Glob Her M31 Andromeda Galaxy Galaxy And M42 Orion Nebula M45 Pleiades Type CId SNR Tau Nebula Sgr CId Name And Andromeda 722.278 Her Hercules Ori Orion Sgr Sagittarius 264.235 Tau Taurus Area 1225.148 594.120 Nebula Ori Open Tau 242.856 (a) TName(Constellation) (b) Area> 1000(Constellation) (c) 1d,Area(MessierCatalogpq Constellation) (d) 1d,Name(nMld,CId(MessierCatalog)D4 Constellation)

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