Recent content by chans

I've been doing alright in Calculus II but I can't seem to grasp sequences/series. The different tests like Integral Test, Comparison Test, Ratio/Root Tests also confused me in terms of how to apply them and when to apply them. What is the best way for me to master this material? Any good...

So basically I'll take the partial derivative with respect to x, then take the derivative of that with respect to y?

Hi everyone, We just started learning partial derivatives and I understand the fx notation, but I'm confused when I'm asked for the value of fxy. Does this mean multiply the two derivatives together? For example: What is fxy when f(x,y) = (x+2y)ln(xy) Thanks!