quick question

[abilitiesz]

When I tried to solve it, I did...

5 integral 0 and then I got the dx of the equation which turned out to be.. x-(.5 cos(pi)(x)/(pi))

So I plugged in 5 for the x and 0 for the x's and minus them together and my answer turned out to be 5. something. But when I look in the back of the book it says my answer is wrong. Can anyone tell me what i'm doing wrong? It's frustrating me.

 

[akoaysigod]

When I tried to solve it, I did...

Yay, you're done. Really though, I have no idea what you just said.

 

[abilitiesz]

My apologies.

What I meant to say was i got the anti-derivative of the original equation and got (see attached file). Now, when I plug in 5 and 0 to it I don't seem to get the right answer that it says in the back of the book. Any idea what i'm doing wrong?

Thanks

 

[akoaysigod]

cos pi*0 = 1 in this case 1/2pi

 

[abilitiesz]

I don't think you understand my question still.. The answer, I believe is suppose to be between 0 and 5. Thanks for the help though.

 

[akoaysigod]

x-(.5 cos(pi)(x)/(pi)) This is right.
x-(.5 cos(pi)(5)/(pi)) Is not right, if you're integrating between 0 and 5.
I believe you're the one who doesn't understand your problem.
For one thing you forgot an x and what I said above.