¡Por favor, ayuda!Determina para cuales de las siguientes ecuaciones la solunción es el conjunto vacío, explica tu respuesta. A- (sen (×) - 1) (sen (×) + 1)=0B- (2 cos(×) - 1) (cos (x) +2)= 0C- (sen(×) - 2) (sen (×) + 3)= 0D- (5 sen (×) - 1) (7 sen (×) + 2) =0

Questions 7-8. use the following table to answer. year 2006 2007 2008 2009 2010 2011 2012 2013 cpi 201.6 207.342 215.303 214.537 218.056 224.939 229.594 232.957 7. suppose you bought a house in 2006 for $120,000. use the table above to calculate the 2013 value adjusted for inflation. (round to the nearest whole number) 8. suppose you bought a house in 2013 for $90,000. use the table above to calculate the 2006 value adjusted for inflation. (round to the nearest whole number)