Question

Question #3b6b1

Answer 1

`y'=ABCe^(-Bt)(1+Ae^(-Bt))^-2`

Explanation:

I suppose that t is the variable which should be differentiated...

`y=C/(1+Ae^(-Bt) )=C(1+Ae^(-Bt))^-1`
`y=C*(u)^-1`
`u=1+Ae^(-Bt)`
`y'=-C*u'*(u)^-2`
`u'=-ABe^(-Bt)`
`y'=ABCe^(-Bt)(1+Ae^(-Bt))^-2`