First one, . Is that as straight forward as it seems? Expand that out and then integrate as normal? Or should I substitute, setting and ? Second one, . No idea where to start.
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Originally Posted by cinder First one, . Is that as straight forward as it seems? Expand that out and then integrate as normal? Or should I substitute, setting and ? Yes substitute, because its derivative appears almost outside. Second one, . No idea where to start. Hint: First substitute . Hint: There is a second substitute
Hello, cinder! Looks like you're a bit shaky about substitution . . . Let Substitute: . Back-substitute: . Let Substitute: . . . Back-substitute: .
Originally Posted by Soroban Hello, cinder! Looks like you're a bit shaky about substitution . . . Yes, I'm just not sure what I should be substituting.
Originally Posted by cinder First one, . Is that as straight forward as it seems? Expand that out and then integrate as normal? Or should I substitute, setting and ? Second one, . No idea where to start. Observe that is the derivative of so: For: , ask yourself what is the derivative of: RonL
For the second integral you can make the substitution . Then So
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