Maths iterative formulaWatch
number 3 part 2 asked to use iterative formula right
i tried to use it as u can see from x1 to x9 but i cannot find 2.12... which part im makin mistake?
Substitute those values in the equation given and you'll notice a sign change.
The change in sign indicates that there is a root in the given interval.
For the second part, use x = 2 for the iteration formula and keep working till you get the similar answer to 3 d.p.
This website could help you:
Hope this helps
In part ii you appear to have calculated .
You should be doing as given in the question.