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July 29, 2016
Posted by **Geoff** on Sunday, December 19, 2010 at 1:23pm.

∫sec^7 x tanx dx

- calculus - Integration -
**Damon**, Sunday, December 19, 2010 at 1:33pmlet u = sec x

then du = sec x tan x dx

so then we have

u^6 du

u^7/7

(1/7)sec^7 x + c