3.8: Derivatives of inverse trig functions Objective: Students will be able to… Find the derivative of inverse functions and inverse trig functions
Is sec x one to one?
Proof: y= sec (x) Write inverse: Differentiate:
If u is a differentiable function, then,
Examples: find the derivative
Derivative of the other three Inverse Function—Inverse Cofunction Identities
Therefore,
Examples:
Find an equation for the tangent line to the graph y=cot-1x at x = 1.
Calculator conversion identities