Question

If the H.M of a and B is KAB/a+b then k^3 -k^2+2k + 1 =

Answer 1

Step-by-step explanation:

If the H.M of a and B is KAB/a+b then k^3 -k^2+2k + 1 =

Answer 2

Step-by-step explanation:

k=2

K³-K²+2K+1

(2)³-(2)²+2(2)+1

8-4+4+1

=9

-4 AND 4 GETS CANCEL