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swin2013

  • 3 years ago

Find dy/dx

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  1. swin2013
    • 3 years ago
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    sin(xy) =2x+5 through Implicity

  2. calculusfunctions
    • 3 years ago
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    How much do you know or are able to do?

  3. calculusfunctions
    • 3 years ago
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    @swin2013 do you plan on answering me or do you not want my help?

  4. swin2013
    • 3 years ago
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    i had to attend to other businesses. cos(xy) *(y+x*dy/dx) = 2

  5. calculusfunctions
    • 3 years ago
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    Correct! So you do know! Now solve for dy/dx.

  6. swin2013
    • 3 years ago
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    ok... i did it right. i thought i did it wrong lol

  7. calculusfunctions
    • 3 years ago
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    Yes you differentiated correctly but now you should express dy/dx in term s of x and y. In other words, isolate dy/dx.

  8. swin2013
    • 3 years ago
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    i got 2 - cosxy *y / -x = dy/dx

  9. calculusfunctions
    • 3 years ago
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    No, if\[(y +x \frac{ dy }{ dx })\cos (xy)=2\]then\[y \cos (xy)+x \cos (xy)\frac{ dy }{ dx }=2\] \[x \cos (xy)\frac{ dy }{ dx }=2-y \cos (xy)\] \[\frac{ dy }{ dx }=\frac{ 2-\cos (xy) }{ x \cos (xy) }\]

  10. swin2013
    • 3 years ago
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    OH you distributed. ok i gotcha

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