the answer i got is 0.

the answer in the back of the book says: Does not exist

what did i do incorrectly?

This is what I did:

=

=

=

=0

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- Oct 2nd 2009, 07:09 PMyoman360help with basic integral problem?

the answer i got is 0.

the answer in the back of the book says: Does not exist

what did i do incorrectly?

This is what I did:

=

=

=

=0 - Oct 2nd 2009, 07:14 PMmr fantastic
The update will be unnecessary since you probably neglected to recognise it as an improper integral (the integrand is undefined at x = 0 which lies in the interval of integration). The first step is therefore to write:

.

(A pre-emptive) by the way, statements like make no sense and certainly do not equal zero .... - Oct 2nd 2009, 07:20 PMyoman360
ah i see since f is not continuous on [a,b] I can't use the fundamental theorem of calculus:

where F is any antiderivative of f, that is, a function such that F'=f

Thank you so much for pointing that out I just forgot to check if its continuous on [-5,5] since its discontinuous at x=0 the integral does not exist