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(a) How many additions and multiplications are needed to compute the following: S = m n aibi i=1 j=1 (b) Modify the formula for

(a) How many additions and multiplications are needed to compute the following: S = m n aibi i=1 j=1 (b) Modify the formula for a so that you get the same value but reduce the number of computations. How many additions and multiplications are needed now?

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