i cant solve it! im really lost. i know you find f''(x) (i got 9e^3x +12) but i dont know where to go from there what would i do on my calculator?
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Originally Posted by LexiRae i cant solve it! im really lost. i know you find f''(x) (i got 9e^3x +12) but i dont know where to go from there what would i do on my calculator? A horizontal tangent will have a slope of 0. So set and solve for
Last edited by Reckoner; Feb 25th 2009 at 05:58 PM. Reason: Stupid error. Thanks, skeeter
Originally Posted by Reckoner A horizontal tangent will have a slope of 0. So set and solve for set rather than ? graph f'(x) and look for the zero. using a calculator ...
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