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Multplying by a form of 1 
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#1
Mar1810, 12:21 AM

P: 83

1. The problem statement, all variables and given/known data
Integrate 1/(1secx)dx by multiplying the integrand by a form of 1. 2. Relevant equations any sort of trig identity? 3. The attempt at a solution I've tried multiplying by forms of 1 such as secx+tanx, secxtanx, and others, but when i do, i just end up with a messy looking integrand. any pointers with this and any other problems like it? 


#2
Mar1810, 12:23 AM

Mentor
P: 21,397

How about multiplying by (1 + sec x)/(1 + sec x)? Is that one you tried?



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