Question

[Dương Hải Minh]

 Cho A = \(\frac{\text{1}}{\text{6.10}}\text{+}\frac{\text{1}}{\text{7}\text{.}\text{9}}\)+ \(\frac{\text{1}}{\text{8.8}}\text{+}\frac{\text{1}}{\text{9}\text{.}\text{7}}\)+\(\frac{\text{1}}{\text{10.6}}\)

CMR : A = \(\frac{\text{1}}{\text{8}}\text{.}\text{(}\frac{\text{1}}{\text{6}}\text{+}\frac{\text{1}}{\text{7}}\text{+}\frac{\text{1}}{\text{8}}\text{+}\frac{\text{1}}{\text{9}}\text{+}\frac{\text{1}}{\text{1}\text{0}}\text{)}\)

 ai giúp mình nhanh mình cho hẳn 3 tick.:'(

Answer 1

[Hà Phương]

baái phục @.@ câu này dễ mà. mk đg onl = ti vi nên k answer đc ==

Answer 2

[Ngọc Anh]

hình như đề sai rồi