I really need help with definite integrals! thank you

[hollahjinax3]

In this problem ... it says to use RAM to estimate the area of the region enclosed b/w the graph of f and the x axis for a =< x =< b ( a less than of equal to x and x less than or equal to b. )


f(x) = x^2 - x + 3 ; a = 0 , b = 3


I am really confused. I need help ASAP. Thank you so much !!!!

 

[Gene]

Intg_{0 to 3}(x²-x+3) =
(1/3)x³-(1/2)x²+3x]0 to 3 =
9-4.5+9

PS: Not a clue as to what RAM is. You can at least use this to check your answer.