derivatives

[soft socket]

i didn't understand the second line

[scarlet skiff]

is this by first principle?

[soft socket]

yes

[brave wadi]

it’s just the fact that lim fxg = lim f x lim g

[scarlet skiff]

what is the original question

[soft socket]

find derivative of sin root x using first principle

[scarlet skiff]

ok

i don't remember first principle all that well, but I'll give it a try

@soft socket do you know L hospitals rule

[soft socket]

we didnt learn that

[scarlet skiff]

oh ok, I'll try to do it without that then

[soft socket]

yeah

[scarlet skiff]

i tried another method

you know the trigonometrical identities?

[soft socket]

ohh ok

i get it now