Implicit Diff with arctan (5.7 p 380 #71)Here we find a tangent line of a function using implicit differentiation, the product rule, the chain rule, and some careful algebra.
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Derivatives of Inverse Functions on the TI-84 (5.3 p...
The Derivative of an Inverse Function (5.3 p340 #67)The derivative of a inverse function is thereciprocalof the derivative of the inverse function. Be mindful of the exchange of values (x,y) to (y,x) with inverse functions