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April 30, 2016
Posted by **Em** on Thursday, March 7, 2013 at 12:22am.

- Calculus -
**Reiny**, Thursday, March 7, 2013 at 10:56am9(sinx + cosx)/sin2x

= 9( sinx/(2sinxcosx) + cosx/(2sinxcosx)

= (9/2)(1/cosx + 1/sinx)

= (9/2) (secx + cscs)

can you take it from there?

(the integrals of secx and cscx should be part of your repertoire of basic integrals)