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anonymous
 5 years ago
f(x)=(1+16x^2)tan^1(4x)...find the derivative...i got 128x/(1+16x^2)...its wrong...i keep missing a step
anonymous
 5 years ago
f(x)=(1+16x^2)tan^1(4x)...find the derivative...i got 128x/(1+16x^2)...its wrong...i keep missing a step

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Vijay
 5 years ago
Best ResponseYou've already chosen the best response.0\[32x \tan^{1} (4x) + 4\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but the derivative of tan^1 is 1/1+x^2 and you plug 4x into for the x....anc then continue...what happened to that equation

Vijay
 5 years ago
Best ResponseYou've already chosen the best response.0tan^1(x) = 1/ 1 +x^2, but tan^1(4x) = 4/(4^2 + x^2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so how did u get from that to the answer u gave

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i dont understand why you would use the derivative equation for one problem and not the other
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