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- E2P19
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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.
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”
Thank you for the answer….. I see where I made a mistake
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