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v.s

  • 3 years ago

Find the derivative of the function. y = cos [(1 − e^7x)/(1 + e^7x)]

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  1. v.s
    • 3 years ago
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    -sin (1 − e^7x)/(1 + e^7x) * [(1+e^7x)(7e^7x)-(1-e^7x)(7e^7x)]/(1+e^7x)^2

  2. v.s
    • 3 years ago
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    help me!!

  3. zepdrix
    • 3 years ago
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    |dw:1350242642176:dw| Hmm I think you have your derivatives backwards on the top and bottom.

  4. zepdrix
    • 3 years ago
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    Oh nevermind, yours looks good.. I think you're just missing a minus sign on the first term :)

  5. v.s
    • 3 years ago
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    yeaa

  6. v.s
    • 3 years ago
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    thanks

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