Polytechnic Mathematics // Second Semester // Unit 1 // Revision .

This is a revision video based on previous year question paper. For detailed videos click the links provided below. https://www.youtube.com/watch?v=k3HSYAdF72g&t=1329s https://www.youtube.com/watch?v=3_l2KWXZ5Bw&t=877s https://www.youtube.com/watch?v=9jFCRlq0uAA&t=27s https://www.youtube.com/watch?v=YjbBW17W6Ts&t=100s