evaluate integral from 0 to pi/2) of cos4x-cos10x)/sinx dx
jkwii Ultimate Member Joined Jan 4, 2007 Messages 216 Gender Male HSC 2008 Apr 24, 2008 #1 evaluate integral from 0 to pi/2) of cos4x-cos10x)/sinx dx
Slidey But pieces of what? Joined Jun 12, 2004 Messages 6,600 Gender Male HSC 2005 Apr 24, 2008 #2 cos4x/sin is fairly easy to integrate. It's the cos10x bit that's annoying. Sum to products don't help here. Maybe break it down into 5x and then again into 4x+x, and go from there?
cos4x/sin is fairly easy to integrate. It's the cos10x bit that's annoying. Sum to products don't help here. Maybe break it down into 5x and then again into 4x+x, and go from there?
jkwii Ultimate Member Joined Jan 4, 2007 Messages 216 Gender Male HSC 2008 Apr 24, 2008 #3 Slidey said: Sum to products don't help here. Click to expand... i was told on the full Q to use sum to products! really hard that way.
Slidey said: Sum to products don't help here. Click to expand... i was told on the full Q to use sum to products! really hard that way.
