Find L4 for f(x)=49cos(pi/2) from [2pi/4,2pi/2]

I thought it would just be zero since there aren't any x's in f(x)? Apparently that's incorrect though. Any help would be wonderful! :)

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- Apr 3rd 2008, 03:49 PMA5HLEYRiemann Sum
Find L4 for f(x)=49cos(pi/2) from [2pi/4,2pi/2]

I thought it would just be zero since there aren't any x's in f(x)? Apparently that's incorrect though. Any help would be wonderful! :) - Apr 3rd 2008, 04:17 PMTheEmptySet