Fourier Series Lecture by Ms. Priyanka Pandey.

A Fourier series is an expansion of a periodic function f(x) in terms of an infinite sum of sines and cosines… It is useful in the study of periodic function occurring …

Excretory System Lecture by Dr. Priyanka Dadupanthi.

This video is about Excretory System. Parts of this system are Kidney, Ureter, Urinary Bladder and Urethra. Kidney and ureter are paired. Wall of urinary bladder is muscular. Adernal gland is …