OK if you haven't studied derivatives yet then you wouldn't be expected to do it that way.Just got it now. I skipped this question first because although this is in our worksheet, we haven't even studied derivatives so I doubt this will appear in my test on Monday. But I get it, its just that chain rule is weird for me because we haven't discussed it yet.
Thanks! I’d be stuck in this problem till now if you hadn’t introduced “that” concept, idk why my teacher gave this