for the first derivative i got: y'=(-2e^1/(x^2)) /x^3 2nd one i got: (4x^3e^1/(x^2) + 6x^2e^1/(x^2)) / x^6 are they correct? if not, what are the correct answers...? thank you in advance
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Originally Posted by LandLBoy for the first derivative i got: y'=(-2e^1/(x^2)) /x^3 2nd one i got: (4x^3e^1/(x^2) + 6x^2e^1/(x^2)) / x^6 are they correct? if not, what are the correct answers...? thank you in advance Dear LandLBoy, The first derivative is correct. But the second derivative should be, $\displaystyle \frac{d^{2}y}{dx^2}=\frac{4e^{\frac{1}{x^2}}+6x^{2 }e^{\frac{1}{x^2}}}{x^6}$
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