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ta123

  • 4 years ago

f'(x)= x^(2)cosx-2xsinx=-(x^(2)+2)sinx

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  1. ta123
    • 4 years ago
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    is this right??

  2. myininaya
    • 4 years ago
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    what is f(x)=? no x^2cos(x)-2xsin(x)=x(xcos(x)-2sin(x))

  3. ta123
    • 4 years ago
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    these is the actually problem on the attachment

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  4. ta123
    • 4 years ago
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    I believe its answer choice 6, I'm I right?

  5. myininaya
    • 4 years ago
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    yes

  6. ta123
    • 4 years ago
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    yes! Thanks, I was just checking

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