Question

Tim tich:

(1/2+1)*(1/3+1)*(1/4+1)*.........*(1/999+1)

Answer 1

\(\left(\frac{1}{2}+1\right)\left(\frac{1}{3}+1\right)\left(\frac{1}{4}+1\right).....\left(\frac{1}{999}+1\right)\)

\(=\frac{3}{2}.\frac{4}{3}.\frac{5}{4}.....\frac{1000}{999}\)

\(=\frac{1000}{2}=500\)                           ( Làm theo cách giản ước )

Answer 2

la sao? ko hieu..................??????????????????????????