<p>Why does the derivative of sec^2(x) the same as tan^2(x). I can
prove it, I just need to know WHY!</p>
<p>EDIT: SOLVED PLEASE DELETE</p>
<p>Why does the derivative of sec^2(x) the same as tan^2(x). I can
prove it, I just need to know WHY!</p>
<p>EDIT: SOLVED PLEASE DELETE</p>