A1=1, B1=1, A2=2, B2=2, A3=3, B3=3
C1 = A1+1 = 1+1 = 2
C2 = B1+2 = 1+2 = 3
C3 = B2+2 = 2+2 = 4
C4 = СУММПРОИЗВ(A1:A3;B1:B3) = (A1*B1) + (A2*B2) + (A3*B3) = (1*1) + (2*2) + (3*3) = 1 + 4 + 9 = 14
Ответ: 14