Which of the following is true of the iterative scheme g2(x)=1 +x- x^2/y for the root equation f(x) = x²- y=0, where y is a number?
1. The convergence of g2(x) is not guaranteed because the interval of convergence where |g2(x)|<1 does not contain .
2. g2(x) is not continuous √3
3. The convergence of g2(x) is not guaranteed because g2(x) is not continuous.
4. The convergence of g2(x) is not guaranteed because g′2(x) is not continuous.
5. None of the above is true