Browse · harp Print → smc prealgebra senior Problem Define x⋄y to be ∣x−y∣ for all real numbers x and y. What is the value of (1⋄(2⋄3))−((1⋄2)⋄3)? (A) −2 (B) −1 (C) 0 (D) 1 Solution — click to reveal We have (1⋄(2⋄3))−((1⋄2)⋄3)=∣1−∣2−3∣∣−∣∣1−2∣−3∣=∣1−1∣−∣1−3∣=0−2=−2. Final answer A ← Previous problem Next problem →