YehiaMedhat
Junior Member
- Joined
- Oct 9, 2022
- Messages
- 74
What is "f"? It isn't defined in the problem. Are you assuming y = f(x), or something else?f′(x)=cos(t)xf"(x)=sin(t)cos(t)21I tried to substitute in each choice but no use. for instance the first onesin(t)cos(t)cos(t)−cos(t)sin(t)2sin(t)cos(t)1−sin(t)3View attachment 34655
Don't worry about it. Someone else might benefit from seeing it.?, yes that's a breaking mistake with the second derivative!
Can i just delete the thread it's silly to let others read my question.