Using the Second Derivative (1 of 2: Locating stationary points)

[@tamircohen1512]

Hi Mr Woo. I'm Year 11 student in the UK and thanks to your videos, I just got an 8 which is an A* in my math mock GCSE. You really are making a huge difference so thanks :-)

[@addy2954]

Amazing

[@DicoTheRedstoner]

it's nice to be able to revisit these things, but in the English language as well.

[@zoulikaelahiar5140]

Thank you so much you're videos are really helpful

[@user-rs4hf7ud2e]

Why you did not uploaded this video two months earlier?

[@herowise6021]

Whats up with posting the vids now? were the vids taken b4 or recently

[@SL1P17]

how is cherrybrook not the best school in the state with a teacher like eddie woo

[@catwithaneyepatch]

3:48 Guess who’s failing math now