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xartaan

  • 3 years ago

Having trouble with a problem: "Use difference quotients with \[\Delta x=0.1\] to estimate \[f _{x}(2,1)\] where \[f(x,y)=e ^{-x}\sin(y)\] . As far as I know I should be using the formula \[\frac{ f(a+h, b)-f(a,b) }{ h }\] I've come up with (.103-.114)/.1 which is approx -.11, but apparently that is wrong? Am I using the wrong forumula, or just missing a step? Any help?

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  1. mahmit2012
    • 3 years ago
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    |dw:1354860228515:dw|

  2. xartaan
    • 3 years ago
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    Thanks you

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