Derivative

[sage wasp]

pls post a photo

of the problem

[mossy reef]

sure

[sage wasp]

there you have

ask any doubt

[mossy reef]

omg, thank you so much

[sage wasp]

but did you get it?

the most important thing is that you know how to do it

[mossy reef]

yes i know that is important part

i just do analysis of steps how you did that

thank you for solving

[sage wasp]

np

[wintry magnet]

!done