thebengalboy.com … for beginners

Actually, i wrote this topic on a mail to send one of my classmate. but, i didn’t send him, I am posted it here and send this post link to him ;)   Well, Let’s start.. . . . . #Question: Which of the following are solutions of the differential equation for progressive wave? (i) y= x²-v²t²   and  (ii) y= ... Read More »