How-do-you-find-the-length-of-a-curve-between-f-a-and-f-b-

Question Number 3190 by Filup last updated on 07/Dec/15

How do you find the length of

a curve between f (a) and f (b) ?

Commented by 123456 last updated on 07/Dec/15

wath you mean by lenght of curve ?

if i undestand right, if f is continuous

and diferenciable

L_{a, b} =∣ \underset{a}{\int^{b}} \sqrt{1 + {(\frac{d f}{d x})}^{2}} d x ∣

Commented by Filup last updated on 07/Dec/15

Y e s! That is what i was trying to

remember! Thank you!

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