Question

1)(-1/2)×2×(1/3)×3×(1/4)×4

Answer 1

(-1/2)*2*(1/3)*3*(1/4)*4 = -(1/2 * 2)*(1/3 * 3)*(1/4 * 4) = -1*1*1 = -1

Answer 2

класссссссо?

Answer 3

кек