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    You should use the product rule to diffreniate functions that are multiplied together.

    Let the first function = u (in terms of x)
    and the second = v (in terms of x as well)
    then use the rule dy/dx= u(dv/dx)+ v(du/dx)
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    (Original post by FZka)
    You should use the product rule to diffreniate functions that are multiplied together.

    Let the first function = u (in terms of x)
    and the second = v (in terms of x as well)
    then use the rule dy/dx= u(dv/dx)+ v(du/dx)
    I have seen the applications of the product rule before...
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    (Original post by THRASHx)
    I have seen the applications of the product rule before...
    Well, I can't penetrate your brain and know this.
    I cannot explain anything unless I make sure you get the basics.
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    some plebian gave me a neg rep for putting down the wrong answer - what is the right answer? and to that mug: not gettin none of ya CDs baaaaaaaaaaaaaaaaaaaaaaaaaaack
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    just realised i got the right answer - that mentalist ought to get completely raped of his dignity

    a train on a circular track aint the only thing that travels in circles - im referring to karma if u didnt realise, pleb

    PS i dont mind neg rep but the vicious side comment has enraged me, to a point where i used my formula sheet to dry my tears. im not the kinda guy who ordinarily looks for beef but when i get pboyed off u can call me a butcher
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    OK enough rubbish.

    /thread
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    If you can't do these simple differentiation questions. Then you won't know how to combine chain rule with the product & quotient rule, Hey Good luck with the exam on Wednesday.
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    (Original post by Casshern1456)
    If you can't do these simple differentiation questions. Then you won't know how to combine chain rule with the product & quotient rule, Hey Good luck with the exam on Wednesday.
    Hey, this is combining the chain rule with the product rule
    And I made a stupid mistake of multiplying the wrong thing, thats why I was so annoyed cus ive done it for much more difficult equations.
 
 
 
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