anonymous
  • anonymous
[AP Cal] Evaluate the following definite integral
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[\int\limits_{0}^{\frac{ \pi }{ 6 }}\cos 3xdx\]
anonymous
  • anonymous
put 3x=t
anonymous
  • anonymous
do you really need to use substitution here O_O?

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anonymous
  • anonymous
oh nvm me hes right
anonymous
  • anonymous
so do i use substitution method?
anonymous
  • anonymous
yes ys
anonymous
  • anonymous
3x=t 3dx=dt dx=dt/3 that makes it 1/3 x cost dt
anonymous
  • anonymous
okay, i set 3x = u, now?
anonymous
  • anonymous
see above
anonymous
  • anonymous
where is the x before cost coming from?
anonymous
  • anonymous
thst is mltiply

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