Question

Tìm tích A=\(\frac{3}{4}.\frac{8}{9}.\frac{15}{16}.....\frac{899}{900}\)

Answer 1

A=3/4.8/9 .15/16.....899/900

A=1.3/2^2 .   2.4 /3^2  .   3.5/4^2 ....... 29.31 / 30^2

A= 1.2.3.....29 / 2.3.4....30   .   3.4.5...31 / 2.3.4....30

A=1/30 . 31/2 

A= 31/60

Nhớ k nha

Answer 2

A=\(\frac{31}{60}\)

Answer 3

A=\(\frac{31}{60}\)

Answer 4

A= 31/60 nha ban