# Thread: the area problem question

1. ## the area problem question

i have this question, i dont want to type it all out, because its long but i have a picture of it

2. Originally Posted by Sneaky
i have this question, i dont want to type it all out, because its long but i have a picture of it
The area $A$ under the function $f$ on the interval:

$a\leq x \leq b$

is given by the formula:

$A=\lim_{n->\infty}\Sigma_{i=1}^nf(x_i)\Delta x$

$x_i=a+i\Delta x$

$\Delta x=\frac{b-a}{n}$

Try using that formulation of area. It provides a little more information which should be helpful. It's basically the same formulation on your problem sheet, but I provided more information about $\Delta x$.

Let me know if this helps. If not, I'll add more.