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101Ryan101 Group Title

differentiate 3^(-x/2)

  • 2 years ago
  • 2 years ago

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  1. physopholy Group Title
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    y=3^(-x/2) logy=(-x/2)log3 1/y(dy/dx)=-(1/2)log3 dy/dx=y*(-1/2)log3 dy/dx=(3^(-x/2))(-1/2)log3

    • 2 years ago
  2. 101Ryan101 Group Title
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    should be (3^(-x/2))(-x/2)log3

    • 2 years ago
  3. bnut056 Group Title
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    d/dx(Cx^Ax)=Cx^Ax(Aln(Cx)+AxC/Cx)

    • 2 years ago
  4. bnut056 Group Title
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    C=constant, A=constant

    • 2 years ago
  5. bnut056 Group Title
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    d/dx(C^Ax)=C^Ax(Aln(C))

    • 2 years ago
  6. someone1348 Group Title
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    \[f(x)=3^{\frac{x}{2}}=e^{\frac{\ln(3) \times x}{2}}\] \[f'(x)=\frac{\ln(3)}{2} \times e^{\frac{\ln(3) \times x}{2}}=\frac{\ln(3)}{2} \times 3^{\frac{x}{2}}\]

    • 2 years ago
  7. someone1348 Group Title
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    Umm sorry, forgot the minus symbol, just plug it in and you get \[f'(x)=- \frac{\ln(3)}{2} \times 3^{- \frac{x}{2}} \]

    • 2 years ago
  8. physopholy Group Title
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    no, the derivative of C^u is (C^u)(du)(lnC). So, what I did originally, but with ln instead of log. Someone1348's right, too

    • 2 years ago
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