Question

题目为最后一题，要用小学方法解答。

Answer 1

原式=52/51x50/51x53/52x51/52x....x153/152x151/152
=50/51x52/5x51/52x53/52x...x 151/152x153/152
=50/51x153/152
=75/76

请好评

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Answer 2

原式=(1+1/51)(1+1/52)...(1+1/152)x(1-1/51)(1-1/52)...(1-1/152)
=(52/51x53/52x54/53x...x153/152)x(50/51x51/52x...x151/152) =153/51x50/152=3x25/76=75/76