Expression 6: Start sum from "i" equals 1 to "n" , end sum, left parenthesis, "f" left parenthesis, "a" plus left parenthesis, "i" , right parenthesis left parenthesis, StartFraction, "b" minus "a" Over "n" , EndFraction , right parenthesis , right parenthesis , right parenthesis times left parenthesis, StartFraction, left parenthesis, "b" minus "a" , right parenthesis Over "n" , EndFraction , right parenthesisn∑i=1fa+ib−an·b−an
equals=
negative 1.1 5 4 3 8 0 5 9 3 7 1−1.15438059371
6
Expression 7: Start integral from "a" to "b" , end integral, "f" left parenthesis, "x" , right parenthesis "d" "x"∫bafxdx