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tux

  • 3 years ago

Given y=sin(2x), then dy/dx at x=3 most nearly is: A) 0.9600 B) 0.9945 C) 1.920 D) 1.989 My answer is D)1.9890 but in the solutions answer is 1.920.

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  1. ghass1978
    • 3 years ago
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    the unit is probably radians not degrees

  2. tux
    • 3 years ago
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    When I convert it to radians I get http://www.wolframalpha.com/input/?i=1.989+degrees+to+radians

  3. ghass1978
    • 3 years ago
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    you don't have to convert,just set the mode in your calculator to radians then you'll get 2*cos(6)=1.9203...

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