1 Suppose we want to differentiate Æ (x) = x 2 sin (x). 2  By using the product rule, one gets the derivative Æ '(x) = 2 x sin(x) + x 2 cos(x) (since the derivative of x 2 is 2 x and the derivative of sin(x) is cos(x)).
Costanza Connie Falconeri/Kate Howard (as played by Kelly Sullivan on General Hospital) Useful information about Costanza Connie Falconeri/Kate Howard. * She grew up in Bensonhurst in an Italian American family. * Her birth name is Constanza Louise Falconeri. * She almost ran off with Sonny while in high school, but didn't want to give up on her dream of a career in fashion.
Kate (portrayed by Bree Wasylenko) The former owner of The Next Step studio and Phoebe's sister. Elite Dance Studio owner Lucien is often seen always plotting against and teasing Kate, Phoebe and the A-troupe dancers. She is known to all as Miss Kate.