Question

(1+1/2)×(1+1/3)×(1+1/4)×...×(1+1/2018)

Answer 1

=3/2.4/3.5/4.......2019/2018

=3.4.5......2019/2.3.4.5....2018

=2019/2

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Answer 2

\(\left(1+\frac{1}{2}\right)x\left(1+\frac{1}{3}\right)x\left(1+\frac{1}{4}\right)x...x\left(1+\frac{1}{2018}\right)\)

\(=\frac{3}{2}x\frac{4}{3}x\frac{5}{4}x...x\frac{2019}{2018}\)

\(=\frac{2019}{2}\)

Answer 3

Đáp án : \(\frac{2019}{2}\)