Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
QUESTION
In the picure below, do you now why ds is found to be (-sintheta i +cos theta j)?
In the picure below, do you now why ds is found to be (-sintheta i +cos theta j)?
I'm especially not understanding why there is a negative in front of the sin theta.
If you could help me, that owuld be great. thankyou.
