Originally Posted by
alexandrabel90 how do you find the arc length for
y = a/2 ( exp (a/2) + exp(-a/2)) from x=0 to x=a? Mr F says: Where are the x's meant to be in your rule for y? And why is it a/2 here and 2/a in your expression below?
i got stuck at solving the
integration ( 1/2 +1/4 exp(2x/a) + 1/4 exp( -2x/a) )^(1/2)..