Efficient Numerical Methods for Solving Equations: MCQs and Solutions

abrowaqas
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some one help me to solve these questions.

1. The order of convergence of Newton-Raphson Method is
a) at least one b) at most two c) at least there d) four e) none of these.

2. Newton-Raphson Method fails to find the root of f(x)=0 if:
a) f'(x) > 0 b) f(x)< 0 c) f'(x) = 0 d) f'(x) <0 e) non of these.

3. the fixes point iteration method defined in the form Xn+1 = g(Xn) converges of:
a) g'(x)>1 b) g'(x) =1 c) g'(x)>1 d) g'(x)=0 e) None of these

4. Jacobi Method for system of linear equations has convergence:
a) faster than SOR method b) faster than Gauss_siedel c) faster than Newton's method d)slower than Gauss-siedel e) none of these
 
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I presume you have read the rules for this forum- which you were supposed to have read before you registered. If so, you know that you must show what you have tried before asking for help. I don't see that here.
 
well ... the questions are typically related to theory of the topics.
so the guess may works. .
for
1. i don't have idea

2. i think its f'(x)=0 bcoz if the derivative is zero Newtons-raphson will not approach to infinity

3. none of these coz for iteration to converge it must have decreasing derivatives

4. faster than gauss-seidel...

am i right ... kindly suggest
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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