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anonymous
 5 years ago
whats the derivative of arctan7z
anonymous
 5 years ago
whats the derivative of arctan7z

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[d \tan^{1} u=[1/(1+u ^{2})]du/dx\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The derivative of f(x) = arctan x is given by f '(x) = 1 / (1 + x 2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It's a formula that you have to memo! put for each x=7z in f '(x) = 1 / (1 + x^2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Good job, nice, but using x is an elementary way of stating the problem. It doesn't account for the chain rule. Better use u, then tag on du. (Your answer as given, must be multiplied by 7.)
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