It is known that f (AB) = f (a) + F (b) holds for any positive real number a and B (1) Finding the value of F (1) (2) If f (2) = P, f (3) = q (P, q are constant), find the value of F (36) - f (1 / 36) Great guys, please let me know the process,

It is known that f (AB) = f (a) + F (b) holds for any positive real number a and B (1) Finding the value of F (1) (2) If f (2) = P, f (3) = q (P, q are constant), find the value of F (36) - f (1 / 36) Great guys, please let me know the process,

(1):f(1*1)=f(1)+f(1) => f(1)=0;
(2):f(6)=f(2*3)=f(2)+f(3)=p+q;
f(36)=f(6*6)=f(6)+f(6)=2f(6)=2p+2q;
Because f (1) = f (36) + F (1 / 36) = 0;
So: F (36) = - f (1 / 36);
So: F (36) - f (1 / 36) = 2F (36) = 4P + 4q