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1. simplify

   • use identities
     • algebraic
     • trigonometric

2. substitution

3. identify

   • rational f
     • partial integration
   • polynomial x (trigo or exponential or log f )
     • integration by parts
   • product pairs of trigo
     • use identities
   • x>2
     • substitution
   • quadratic
     • completing square

4. techniques

   • multiple?
     • identify step by step

5. try again