Answers

  • Brainly User
2014-10-04T12:14:32+05:30
(1 + tanx) / (1 - tanx) = tan(x + π/4)

Int [(1 + tanx) / ( 1 + tanx) dx 

= Int tan(x + π/4) dx
= log sec(x + π/4)
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2014-10-04T12:17:38+05:30
See the attachment for the solution...
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