differentiating using a product rule

mardi 2 septembre 2014

when differentiating



e^(at) * (cos(bt) + isin(bt))



are you able to use product rule to find the derivative considering (cos(bt) + sin(bt)) as one function??



why??



and what does d/dt exactly mean?? (they get multiplied to a function that needs to be differentiated and I wanted to solidify their definitions in my head so that I could manipulate them when encountered)





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