Find the definite integral using Riemann sums: ∫₀¹ (x-2)dx = ?
1) ∫₀¹ (x-2)dx = -1
2) ∫₀¹ (x-2)dx = 0
3) ∫₀¹ (x-2)dx = 1
4) ∫₀¹ (x-2)dx = 2