Use Newton's method for three steps to solve the following equations. Find and sketch the tangent line

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Use Newton's method for three steps to solve the following equations. Find and sketch the tangent line for the first step, then find the Newton's method discrete-time dynamical system to check your answer for the first step and compute the next two values. Compare with the result on your calculator.
The point where cos(x) = x (in radians, of course).
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