Proving the volume of a sphere with radius r 0:00
Proving the surface area of a sphere with radius r 6:14
For more calculus tutorials, check out my new channel "just calculus":
👉 https://www.youtube.com/justcalculus
Volume: https://youtu.be/BeVQKkUJCVg
Arc Length: https://youtu.be/PK7HZiFG_VI
Surface Area: https://youtu.be/A_vSMlXH3sg