Respuesta :

F(t) = e^(7tsin 2t)
F'(t) = 
e^(7tsin 2t)*7[tsin 2t]'
F'(t) = e^(7tsin 2t)*7(sin 2t)*tcos(2t)*[2t]'
F'(t) = e^(7tsin 2t)*7(sin 2t)*tcos(2t)*2
F'(t) = 14e^(7tsin 2t)*(sin 2t)*tcos(2t)