Post your doubts in Phy and Math

I have created two threads in which you can post your doubts in Physics and Mathematics. I understand that this forum is not suitable for those topics. Therefore, I have created those threads in Computer, Science... forum.
Please do not post your doubts here in Ravan forum. Post in those threads. The links are:-

For Mathematics:-
https://www.indiaforums.com/forum/computers-science-technology/695943/post-your-doubts-in-mathematics

For Physics:-
https://www.indiaforums.com/forum/computers-science-technology/695938/post-your-doubts-in-physics