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anonymous

  • 5 years ago

How do you know when to apply product rule and when to apply chain rule? For the problem xy+2x+3y^3=x^5+2 my instructor applied product rule to xy and chain rule to 3y^3. How can I tell the difference?

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  1. anonymous
    • 5 years ago
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    Are you taking a derivative or what?

  2. anonymous
    • 5 years ago
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    Yes, a derivative.

  3. anonymous
    • 5 years ago
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    Oh! You go to Tech! I go to Kennesaw, haha.

  4. anonymous
    • 5 years ago
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    Oh nice. I'm guessing I don't know you. You apply product rule to xy because you have two variables x and y. You apply chain rule to y^3 because y is a function of x, so the derivative of y^3 is 3y^2*dy/dx

  5. anonymous
    • 5 years ago
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    Ohhhhh I see now. Thanks a lot for your help!

  6. anonymous
    • 5 years ago
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    No problem. It'd be great if you could fan me. ;D

  7. anonymous
    • 5 years ago
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    Definitely! Especially since you're just down the road :) I have a lot of friends that go to Tech. Maybe I'll see you around. They're architecture majors though.

  8. anonymous
    • 5 years ago
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    Oh haha... Maybe I will see you around. I know a few architecture majors myself. My fb id is hanky.mei. Let me know if we have mutual friends.

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spraguer (Moderator)
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