Post a New Question

Posted by Molly on Thursday, February 28, 2013 at 2:29pm.

y= e^-7x cos 5x y'=

just use the product and chain rules: y' = -7e^-7x cos5x - 5e^-7x sin5x = -e^-7x (7cos5x + 5sin5x)

More Related Questions