Re: How do cos²X and cos X² and cos (X)² all differ derivative wise?!
Originally Posted by Plato
Outside CAS no one uses . So there is no reason to be confused,
The derivative of is
The derivative of is
BTW. Because these are functions most of us insist that () be used.
I will mark as wrong.
Sorry but when I look the top one I think chain rule. So i'd derive cos² (the outside) and get -2sin and leave the inside the same so i'd end up with -2sin(X). Why is this wrong?