Find the antiderivatives - I tired working on these but I can't seem to get the correct answer for it

1.

2. ----- Nevermind, I got this one

3.

4.

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- May 20th 2006, 03:38 PMnirvaSome Antideriv-integral problems
Find the antiderivatives - I tired working on these but I can't seem to get the correct answer for it

1.

2. ----- Nevermind, I got this one

3.

4. - May 20th 2006, 06:16 PMThePerfectHackerQuote:

Originally Posted by**nirva**

Thus,

Thus, we have,

Thus, the integrand is,

Thus,

- May 20th 2006, 06:27 PMThePerfectHackerQuote:

Originally Posted by**nirva**

Thus,

The integrand becomes,

Use integration by parts again with,

Thus,

Thus, the integrand becomes,

Thus,

=

Thus, (solve for this integral as if a variable)

Since you know the anti-derivative you can find the definite integral. - May 20th 2006, 07:03 PMThePerfectHackerQuote:

Originally Posted by**nirva**

Use integration by parts with,

Thus,

By parts,

Use integration by parts again,

Thus,

By parts,

Thus,

=

Solve for integrand as if to say an equation,

- May 20th 2006, 08:33 PMnirvaQuote:

Originally Posted by**ThePerfectHacker**

Is the lable for the integration by parts wrong? Like the u being the u' - May 21st 2006, 09:04 AMThePerfectHackerQuote:

Originally Posted by**nirva**

If you want to write,

I saw you did it as,

Code:`e^-^t`

Code:`e^{-t}`