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(3X+32)100展開式的通項為Tr+1=350−r22r3Cr100x100−r,其中r=0,1,2…100要使係數為有理數則需要r是6的倍數∴r=0,6.16,18,…96共17個值故係數為有理數的項有17項故答案為17
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