thanks devske!, please subscribe 118yt118 at youtube. You can also check out our other video genre.

thanks serovius!!!

Hey caloriesproper, thanks man! Please do check out my other video genre in youtube "118yt118". [eg math,statistics,machine learning,jokes ... Thanks again!

hey kiddady, thanks for the compliments ;) Please go to my youtube channel for other video genre ...

hi elderson, when i first saw i thought you wrote Wrong math ... I concur, that is the reason why the usage of u-substitution ;)

thanks noso! FYI, in basic calculus typically only cover single factorial ie one bang. In this video, we did 3 bangs ie !!!. Please check out my youtube channel ;) Here is a sampler ...

deviled eggs

alpha dog

face the music

too many cooks spoil the soup

On the ball

a stone throw away

Hit the hay

Play by ear

Good RidDance

Plain sailing

a watched pot never boils

the birds and the bees

foot in the door

as high as a kite