Rozwiąż sumy Agata: 4 2 ∑ ∑ xi*(a+yj) i=2 j=2 dla a=3, x1=−2, x3=4, x4=7, x5=5, x6= −4, y1=2, y2=4, y3=1, y4=−1, y5=6

Basia: = ∑_i=2,3,4x_i(a+y₂) = (a+y₂)*∑_i=2,3,4x_i = (a+y₂)(x₂+x₃+x₄) = ...................... policz