introduction of Riemann integral
https://youtu.be/sqHZwg_wbWY
necessary and sufficient condition for integrability of function
https://youtu.be/pPV5u2hIK3A
darboux theorem
https://youtu.be/Y1FDtW3ryuA
some other important theorems
https://youtu.be/oqqW0RBBlJI
first mean value theorem
https://youtu.be/V1HGHp--ivU
bonnet's second mean value theorem
https://youtu.be/BwpRDtT9deI
Weierstrass second mean value theorem
https://youtu.be/36-Z8co6Bio
important examples and their solution
https://youtu.be/9JLZ7P3bd68
important examples and their solution
https://youtu.be/yBiJ3UrqyNg
important question and it's solution
https://youtu.be/ne0uTRugOm0
important question and its solution
https://youtu.be/CZm6Y36fZsw
important question and its solution
https://youtu.be/jR9LYt04OU4
