Hello,

I believe there is a mistake in the Q8 of the Step I Mechanics module :
it seems to me that the distance between P and Q is rather e^t * square_root(1 + e^-2T - 2 e^-T cosT )

I believe the double product has been counted as a simple product.

Am I wrong ?

Anyway, thank you for the support !

PS: May someone provide me with a webpage listing LaTeX tags ? I don't know how to use these, so I always end up posting poorly displayed equations when I discuss Maths online.