so hard to understand seeing it like that :/ and complex or differentiation help please?

Q6. a) differentiate 1/x with response to x from first principles

B) the function f is defined as x--->xsinx, where xER

(i) find f'(x), where f'(x) iis the first derivative of f(x)
(ii) find f''(x) where f''(x) is the second derivative of f(x)
(iii) hence show that2f''(x)-xf''(x)-xf(x)=2sinx
C) f(x) =x(cubed)-3x-4

taking x1=2 as the first approximation to this root, use the newton-raphson methos to find x2, the second approximation.
expree your answer in the form a/b, where a, bEZ

Hope this helps..

this is also on it

plot on the number line the values of x that satisfy the inequality

|x-1|<3, where xEZ

also

prove by induction that for any positive integer n,

2+4+8+...........+2(to the power of n) =2(to the power n+1)-2

thanks dont do q.5 but other two will help..hard to undertsand though :/

Debs

1 company accounts
2 control account (don't know which one)
3 revaluation
4 farm accounts
5 ratios
6 service firm
7 suspense
8 costing (there's a stock valuation q)
9 cash budgeting

Also Submitted)

section 1 = company accounts
section 2= service accounts and suspense accounts Section 3 = valuation of closing stock

Section 3 - Question 9 - Production Budgets

Also Submitted)

Farm Accounts
Revaluation Reserve
Cash Budgeting

cheers will be a help