Q2.15

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The iteration formula to find the square root of a positive real number $b$ using the Newton Raphson method is

(A)

$x_{k+1} = 3(x_k+b)/2x_k$

(B)

$x_{k+1} = (x_{k}^2+b)/2x_k$

(C)

$x_{k+1} = x_k-2x_k/\left(x^2_k+b\right)$

(D)

None of the above

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