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fede.na
Average Member

USA
7 Posts

 Posted - 06/05/2011 :  20:14:17 hey how are you guys.. i got these integral and cant solve it. im a noob at this so have mercy lol [ 1/cos(x) ], [ x/cos(x) ] soo i'd appreciate it if you could tell me how to solve it, :D, the methods i know so far are integration by substitution (i.e. to change the variable) and integration by parts, sooo if you can stick to that, it'd be better.thanks so much in advance!!bye

royhaas
Moderator

USA
3059 Posts

 Posted - 06/06/2011 :  06:54:40 Use cos(x)=sec(x) for the first integral. Use xsec(x) for the second integral.
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