There's nothing to see ...
Attached is the problem that I can't solve.
Can some one look at it and tell me what I am doing wrong?
Did I do the antiderivative correct also??
This is where I F(b) - F(a) to get my answer.
DISREGARD the bottom statement on the sheet, where I sent it to my teacher to help me, if he replies.
Thanks.
Joanne
Siron,
The first fraction of x is suppose to be x^ 2/5.
OK so is this correct?
10/7(1/x^7/5) - 3/25(x)^5/3 ??
But when I key in -4 and -1 for x, I will get an error.
I heard you do something with the negatives on the limits?? perhaps?
Is my antiderivative correct? and how do you get around the error of this?
Thanks
is definitely real. It's about -2.3
IIRC you can switch around the limits but only if you take the negative of the whole integral: that is
Siron, how do you do that calculation. I keyed in exactly what you have there and I get an error? Is there something I am missing to calculate this?
I am not seeing this for some reason. Is it because the root is odd, it's going to be a negative number?? as the root is 5??
Which calculator do you have? Ti-83? Notice there are two '-' signs, one that indicates a negative number and one that indicates the operation the 'difference between to numbers', you have to use the one that indicates negative numbers.
Just a few comments to add: an odd root of a negative number, or the fractional power of a negative number, where the denominator of the fractional power is odd is NOT an imaginary number! For n odd, . Some (but not all) calculators do roots by taking logarithms which will not give correct answers for negative arguments. Really good calculators should be able to handle the "odd root of a negative power" but not all do.
And, finally, and are NOT the "same thing". One is the negative of the other: .
HI EVERYONE, thanks for all the help. There was something I was not getting and now you have helped me. I go an answer of 3.2351. I had to key in information into my calculator a different way for it to work. I don't have a graphing calculator yet. This week I will tho.
So to HallsofIvy, when you pull out the - and switch a and b. When does this get done? I know you add the negative to the equation, but has to happen to do this???
THanks again