- #1

J Goodrich

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[tex]\int r^{3}\:\sqrt{r^{2}+1}\:dr[/tex]

Does this involve double u sub or trig sub?

Thanks in advance,

Justin

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- Thread starter J Goodrich
- Start date

- #1

J Goodrich

- 17

- 0

[tex]\int r^{3}\:\sqrt{r^{2}+1}\:dr[/tex]

Does this involve double u sub or trig sub?

Thanks in advance,

Justin

- #2

tiny-tim

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(have a square-root: √ and an integral : ∫ and try using the X

trig sub is probably easiest.

(alternative hint: write it ∫ r(r

- #3

HallsofIvy

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