Hi, I'm obviously missing something here as I am only getting further awway from the answer.

show that d/dx (cos x + sin x/ cos x - sin x) = sec^2(pi/4 +x)

Thanks in advance

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- May 1st 2009, 02:50 PMslaypullingcatDifferential trig problem
Hi, I'm obviously missing something here as I am only getting further awway from the answer.

show that d/dx (cos x + sin x/ cos x - sin x) = sec^2(pi/4 +x)

Thanks in advance - May 1st 2009, 03:33 PMskeeter
- May 1st 2009, 03:38 PMslaypullingcat
thank you very much, that was really easy to follow.