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swin2013

  • 2 years ago

find dy/dx

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  1. swin2013
    • 2 years ago
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    \[\sin(xy) = 2x+5\]

  2. baldymcgee6
    • 2 years ago
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    |dw:1351479398654:dw|

  3. baldymcgee6
    • 2 years ago
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    differentiate implicitly.

  4. swin2013
    • 2 years ago
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    yea... i think i did it wrong. i know when there's a y present you multiply by dy/dx

  5. baldymcgee6
    • 2 years ago
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    Well, you see, we're taking the derivative with respect to x, so when we come upon a y, we just write "the derivative of y" which is dy//dx or y'

  6. baldymcgee6
    • 2 years ago
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    So what is the derivative of sin(xy)

  7. swin2013
    • 2 years ago
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    cos(xy)

  8. baldymcgee6
    • 2 years ago
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    But beacause of the chaine rule we have to multiply by the derivative of the inside.

  9. baldymcgee6
    • 2 years ago
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    |dw:1351479776831:dw|

  10. swin2013
    • 2 years ago
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    oookk i was stuck on that part, i wasn't sure if i multiplied dy/dx correctly

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