1. Use the limit definition to find f'(x) for f(x) = ? (show all work).
2. Write the limit definition of derivative: f'(x) = lim
3. For the function f(x) = , use the limit definition of derivative to find the slope of the tangent line to the function at x=4.
Show all steps for full credit.
(b) Find the equation of the tangent line to f(x) at x=4. Show all work.
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Step-by-step solutions to the derivatives, limits and equation of tangent lines.