The Cover Up Rule Proof (1 Viewer)

[SB257426]

I am up to the last question in the exercise and I am a bit stuck on this question:





Can anyone please help me out on this ?

 

[jimmysmith560]

Would the following working help?

 

[cossine]

I am up to the last question in the exercise and I am a bit stuck on this question:

View attachment 37957



Can anyone please help me out on this ?

Try L'hopital rule.

Refer to YouTube if necessary

 

[SB257426]

Would the following working help?

View attachment 37958

Thanks a lot, its much more clear now. Also, in the second last line, is that limit expression just another form of differentiation by first principles

 

[SB257426]

Try L'hopital rule.

Refer to YouTube if necessary

Thats the first time I am hearing of this in high school given my teachers never taught it but I will definetly have a look