Posted by Katie on Monday, January 11, 2010 at 8:29pm.
Let F(x) be an antiderivative of sin^3(x). If F(1)=0 then F(8)=?
The answer: 0.632
How do I get to that answer? Do I find the antiderivatie and solve for F(x) when x=8?

Calculus  Mike, Monday, January 11, 2010 at 8:31pm
Yes. Find the anti derivative and solve that answer for x = 8.

Calculus  Katie, Monday, January 11, 2010 at 8:36pm
Alright, I found 1/4cos(x)^4 but I didn't get the right answer.
Did I dint the wrong antiderivative? Do I have to do reverse chain rule and get... (1/4cos(x))sin(x)^4?

Calculus  hardik, Monday, February 15, 2010 at 3:57pm
i am still lost can someone please explain

Calculus  hardik, Monday, February 15, 2010 at 4:02pm
my anti deriv.. i got 1/4 Cosx^4 + C
what do i do next.. = [

Calculus  Anastasios, Wednesday, February 17, 2010 at 2:16am
Your antiderivative is not correct.
You need a u substitution. Or if you have not learned that try NINT in the calculator.
For the u substitution, let u = cos x and du=sinx . (this is after you changed the integral to sin^3x = sin^2x *sinx =(1cos^2x)(sinx). Don't forget the  sign in front of the integral too. Then do the u sub
Answer This Question
Related Questions
 AP Calculus BC  Hi! Thank you very much for your help I'm not sure what the ...
 derivative am i right or wrong  what is the antiderivative of 1/(x^22x+2)? ...
 Calculus 12th grade (double check my work please)  1.)Find dy/dx when y= Ln (...
 Calculus (Antiderivatives)  What is the antiderivative of the followring ...
 Math  What is the product of (5.1*10^3)*3.2*10^3)? (Please express your answer ...
 Calculus Help and Check  1)Find the most general antiderivative of the function...
 calculus  I'm trying to find the antiderivative of (x+3)/2 How would you go ...
 Calculus  Hello, Could somebody kindly check my answer for the following ...
 calculus  find max, min and saddle points of the give function f(x,y)=sin(x)+...
 Calculus  Need help to find dy/dx: 1) y = (sin x) ^1/3 answer dy/dx =  1/ 3(...
More Related Questions