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anonymous
 4 years ago
dr/dt (t ihat + ln(cost) jhat)
anonymous
 4 years ago
dr/dt (t ihat + ln(cost) jhat)

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1349558152846:dw

richyw
 4 years ago
Best ResponseYou've already chosen the best response.0\[\frac{dr}{dt} \left(t \hat{i} + \ln(\cos{t})\hat{j}\right)\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1349558443843:dw is this right?

richyw
 4 years ago
Best ResponseYou've already chosen the best response.0yup! you just differentiate each component separately.
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