Question: Which of the following are linear combinations? (a) A + B + C + D (b) b1x1 + b2x2 + b3x3 . . . +

Which of the following are linear combinations?

(a) A + B + C + D

(b) b1x1 + b2x2 + b3x3 . . . + a

(c) The Lottery numbers

(d) Both

(a) and

(b) above

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