Tính nhanh: (1 - 3/4) x (1 - 3/7) x (1 - 3/10) x (1 - 1/13) x ..... x (1 - 3/97) x (1 - 3/100)
Bài 16: tình nhanh
a, (1-3/4) x (1-3/7) x (1-3/10) x (1-1/13) x ..... x (1-3/97) x (1-3/100)
=.......................................................................................................
=.......................................................................................................
=.......................................................................................................
=.......................................................................................................