Ignore question number 10.(i) . me answer the number 10(ii) .

EXPLANATION

The ii says "hence".  This tells you that you must proceed from i above.

Given;

After differentiating in i, we had;

We now integrate both sides to obtain;

This gives,

We now split the integral to obtain;

This implies that,

We rearrange to get,

But

This implies,

10

We divide through by 10.

NB: The constant C divided by 10 is still a constant.

If a=5 and b=1 and we substitute, we get a general formula,but they were partially substituted to  get.

47

step-by-step explanation: