`B=(1-1/2)(1-1/3)....(1-1/20)`

Question

minhtamnguyet88 · Answer

B=(1 - 1/2) &times; (1 - 1/3) &times; ... &times; (1 - 1/20)   B=1/2 &times; 2/3 &times; ... &times; 19/20   B=1/20     Xin hay nhất

dananhnhu2k4 · Answer

Lời giải:         B=(1-1/2)(1-1/3)...(1-1/20)     B=1/2. 2/3. .... 19/20       B=(1.2.3. ... .19)/(2.3.4. ... .20)     B=1/20     Vậy B=1/20

`B=(1-1/2)(1-1/3)….(1-1/20)`