Geometry of the Derivatives (2 of 6: Exploring gradient & concavity)

[anantgautam]

This man's truly a legend. I love how he explains things.

[franchello]

Bottom row has dy/dx > 0. It should be dy/dx<0.

[sumandangol]

Teacher reaching 1M, congratulation sir!

[_manisha_it]

sir, sorry to say i thought by mistake you have done an error .at last row you have mentioned dy/dx >0 is decreasing but it should be dy/dx<0 .so please check that

[emiloberg]

Kinda nice memory rule: d2/dx2 > 0 gives a happy function (happy smiley) and d2/dx2 < 0 gives a sad function (sad smiley)

[suiii]

Hello sir i am form india ... good class

[Capt_Duffy]

First row dy/dx >0 and last row dy/dx>0 ....is it intentional or writing error..thanx

[SHASHA-seeg]

Sir can you please tell me what apps and gadget did you use to do your presentation?