I need help with finding first and second derivative--simplify your answer.
I solved first derivative
xsec^2(x) + tan(x)
I don't understand how to get the first...can someone show me the steps with explanation?
Calculus - Janet, Sunday, March 20, 2011 at 7:48pm
Sorry I don't understand how to get the second derivative, I gsolved the first derivative already
Calculus - bobpursley, Sunday, March 20, 2011 at 8:04pm
well, the derivative of tan(x) is sec^2(x) that part is trivial.
derivative of x(sec^2(x)) is
y'=vu' + uv'
let u=x v=sec^2=cos^-2
so overall, the