Question

Calculate R8 for f(x)=10−x over [3,5].

Answer 1

Calculate R8 for f (x) =10−x over [3,5]. Here is the solution:

R8 = ∫ [3..5] (10 - x) dx 

=  [ (50 - 25/2 ) - ( 30 - 9/2 ) ]

= ( 75/2 – 51/2 ) = 24/2

= 12