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October 20, 2014

October 20, 2014

Posted by **Daniel** on Thursday, February 24, 2011 at 7:59pm.

- Calculus(derivatives) -
**drwls**, Thursday, February 24, 2011 at 8:04pmf'(x) = -7sin x = 6 sec^2 x

Plug in 5 pi/4 for x and see what you get for f'(5 pi/4)

- Calculus(derivatives) -
**Daniel**, Thursday, February 24, 2011 at 8:40pmthe answer was 6sec^2x-7sinx but what would it be if you put in (5pi/4) how do u put sec^2 in the caculator

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