Ask your own question, for FREE!
Mathematics 64 Online
OpenStudy (anonymous):

int_{0}^{3} x/(sqrt{x^2+16}

OpenStudy (anonymous):

let\[x =\tan \theta\]

OpenStudy (anonymous):

:) thx

OpenStudy (anonymous):

On closer inspection, you don't need trig sub, u sub would suffice. I never noticed until after I worked it out myself. But hey, good practice for trig sub. When you get it on the test you going to knock it out of the park.

OpenStudy (amistre64):

shouldnt x = 4tan(t)? that way; when you square it you get: sqrt(16 tan^2(t) + 16) = sqrt(16(tan^2+1))) = 4sec^2

OpenStudy (amistre64):

err.... 4 sec :)

OpenStudy (anonymous):

Yes. I think he picked that up.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
MAGABACK: ART!
10 minutes ago 5 Replies 0 Medals
danielfootball123: Is Donald trump a good president?
2 hours ago 92 Replies 6 Medals
Gucchi: chem help
13 hours ago 9 Replies 0 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!