) Consider the following binary operations. For each operation, determine if the parallel prefix algorithm can be used to compute prefix sums of a sequence of n operands based on the given binary operation. (a) op(a,b) = 2a + b (b) op(a,b) = ab (a + b) (c) op(a,b) = Va2 + b2 (d) op(,5) = x (x is the vector cross-product in 3D) [Hint: For every , x= 7, and 4 x 3 = 0 ) Consider the following binary operations. For each operation, determine if the parallel prefix algorithm can be used to compute prefix sums of a sequence of n operands based on the given binary operation. (a) op(a,b) = 2a + b (b) op(a,b) = ab (a + b) (c) op(a,b) = Va2 + b2 (d) op(,5) = x (x is the vector cross-product in 3D) [Hint: For every , x= 7, and 4 x 3 = 0