Calculus I

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  • #13240

    Ezra Halleck
    Participant

    Let U=… where R is a constant and V is a variable. Which of the following equals dU/dV?
    This is a basic quotient rule problem, but care must be taken.

    #16868

    Ezra Halleck
    Participant

    pull out the R then use quotient rule
    R (2V (R+V)- V^2)/(R+V)^2
    Distribute the “2V”:
    R(2VR+2V^2-V^2)/(R+V)^2
    Subtract the like terms and factor out a V:
    RV(2R+V)/(R+V)^2
    commute 2R and V to get “E”

    #16870

    H Pardon
    Member

    Thank you for the answer….. I see where I made a mistake

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