Question

calculus help:)

Answer 1

help with

Answer 2

my exact isn't right !!:(

Answer 3

wow thats hard

Answer 4

can you do it and tell me what you get for exact?

Answer 5

& i don't know how to do this one!!!!

Answer 6

Paul's notes gives some details
http://tutorial.math.lamar.edu/Classes/CalcII/ApproximatingDefIntegrals.aspx

Answer 7

For the exact, do you know how to integrate the function that is listed ?

Answer 8

you can break it into 2 integrals
\[ - 3 \int_1^4 dx \]
and
\[ - \int_1^4 x^2 \ dx \]

Answer 9

Yes, my answer was -12.125

Answer 10

can you show your steps? you went wrong somewhere

Answer 11

the first integral (of dx) is just x
evaluated between x= 4 and x=1

Answer 12

your trapezoid and Simpsons are incorrect too

Answer 13

@Zarkon can you help me?

Answer 14

@zarkon they are right look, but my exact is wrong

Answer 15

got it i used another graphing calculator i think mine does not work!! lol

Answer 16

\[\int\limits_{1}^{4}(-3-x^2)dx=-30\]

which is the same value you get with Simpsons. you had 12 .125 for trap and 12 for simpsons

Answer 17

-12.125 for trap and -12 simp