Answer:
(−a+b)(−c+d)
=(−a+b)(−c+d)
=(−a)(−c)+(−a)(d)+(b)(−c)+(b)(d)
=ac−ad−bc+bd
a vector space is a set that's closed under a finite/determined vector addition and scalar multiplication. Basically, scalars are maembers (they can be numbers or variables for exg) in a field called (for exg) F, where in that case, a vector space called (for exg) S would be over (so larger & including) the field we called F.
0.5 is also 0.50 so it is greater than 0.05 and 5/8 is greater than 0.5 because it's more than half for example 4/8=0.5 and 5/8 is 0.62 so it is 0.05,0.5,5/8
