…solutions with the algorithms from Abramov (1989), Petkovšek (1992), Abramov and Petkovšek (1994), Abramov and Zima (1996), Bronstein (2000), Schneider (2001, 2005c), simplifying the solutions by our advanced telescoping algorithms (Schneider, 2005a, 2008, 2010c, 2015) and taking the first…