Question

(3/2+4/3+5/4)totul la a2 x (2/4-1/4-1/6-1/12)
Va rog urgent , dau coroana .

Answer 1

(3/2+4/3+5/4)²x (2/4-1/4-1/6-1/12) =
=[(3*6+4*4+5*3)/12]²x (1/4-2/12-1/12) =
=[(18+16+15)/12]²x (1/4-3/12) =
=(49/12)²x (1/4-1/4) =
=(49/12)²x 0 =0