Question: Suppose that Newton's method is used to locate a root of the equation f ( x ) = 0 with initial approximation x 1 =

Suppose that Newton's method is used to locate a root of the equation f(x) = 0 with initial approximation x1 = 5. If the second approximation is found to be x2 = 1, and the tangent line to f(x) at x = 5 passes through the point (20,4), find f(5).
Use Newton's method with initial approximation x1= 7 to find x2, the second approximation to the root of the equation x3 = 8x 1.

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