(1- 1/100)(1- 1/99) .....(1- 1/4)(1- 1/3)(1- 1/2) (-1 1/2)*(-1 1/3)*......(-1 1/6)*(-1 1/7)

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(1-1/100)(1-1/99).....(1-1/4)(1-1/3)(1-1/2)(-11/2)*(-11/3)*......(-11/6)*(-11/7)(1-1/100)(1-1/99)...

(1- 1/100)(1- 1/99) .....(1- 1/4)(1- 1/3)(1- 1/2) (-1 1/2)*(-1 1/3)*......(-1 1/6)*(-1 1/7)
(1- 1/100)(1- 1/99) .....(1- 1/4)(1- 1/3)(1- 1/2)
(-1 1/2)*(-1 1/3)*......(-1 1/6)*(-1 1/7)

(1- 1/100)(1- 1/99) .....(1- 1/4)(1- 1/3)(1- 1/2) (-1 1/2)*(-1 1/3)*......(-1 1/6)*(-1 1/7)

通分,化简,约分即可.

1.99/100*98/99*...*3/4*2/3*1/2=1/100
2.(-3/2)²(-4/3)²....(-7/6)²(-8/7)²=9/4*16/9*...*64/49=64/4=8
*(乘号) (你的*意思是平方吗?)

题呢??