I'm having trouble with this problem:
I don't know how to get any special characters in there so just assume I want to integrate the above problem. Just for clarification...it reads tan squared square root x. (The entire tan function is squared) divided by square root x.tan^2(x^1/2)/x^(1/2)
Ok. I understand how to get the answer out of that. (It has the answers in the back of the book) but I'm confused how you got dx = -2ydy
I think it's just a minor difference in the way I was taught but I just can't see it.
I understand using a variable to represent square root x. I just don't get the dx = -2ydy part.