[tex] \int_0^{2\pi} \frac{1}{25cos^2(t) + 9sin^2(t)}dt [/tex]
Substituted the variables twice and got the upper and lower boundaries to both be 0 (think i might have gone wrong there) [tex] \frac{1}{15} tan^{-1} \frac{3tan(t)}{5} [/tex] with upper and lower boundaries both being 0. I know the answer is [itex] 2\pi/15 [/itex] but I am not getting that answer, would it be my limits that are incorrect here?
Substituted the variables twice and got the upper and lower boundaries to both be 0 (think i might have gone wrong there) [tex] \frac{1}{15} tan^{-1} \frac{3tan(t)}{5} [/tex] with upper and lower boundaries both being 0. I know the answer is [itex] 2\pi/15 [/itex] but I am not getting that answer, would it be my limits that are incorrect here?
via Physics Forums RSS Feed http://www.physicsforums.com/showthread.php?t=725586&goto=newpost
0 commentaires:
Enregistrer un commentaire