Log Linearisation Question

Hi Mister Pfeier, that really helped me. Thanks a lot.

I have one more question :).

If I want to linearise one optimility condition:

for example this one

image

In this case, F is already differentiated in the optimility condition. And the function is known. Of course, the derivation of the Function to N is no problem.

But if i want to take a multivariate Taylor Approx, do I have to differentiate F_n to just N or also K ?

Have a nice Weekend:)