anonymous
  • anonymous
whats the derivative of arctan7z
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[d \tan^{-1} u=[1/(1+u ^{2})]du/dx\]
nice
  • nice
The derivative of f(x) = arctan x is given by f '(x) = 1 / (1 + x 2)
nice
  • nice
It's a formula that you have to memo! put for each x=7z in f '(x) = 1 / (1 + x^2)

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anonymous
  • anonymous
ty
nice
  • nice
clear ?
anonymous
  • anonymous
yah as crystal
nice
  • nice
nice =)
anonymous
  • anonymous
Good 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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