that is a beautiful girl !

bạn học bài mùa xuân của tôi rồi hả .mình chưa học nên chưa giải cho bạn đc.

P = \(\frac{3}{4}+\frac{8}{9}+\frac{15}{16}+\frac{35}{36}=\frac{511}{144}\)

    **** cho tớ nhé !

i do my homework 4 hours a day.

i go to Da Nang beach during my vacation..

\(\frac{1}{x+y+z}=\frac{y+z+1}{x}=\frac{z+x+2}{y}=\frac{x+y-3}{z}=\frac{y+z+1+z+x+2+x+y-3}{x+y+z}=\frac{2\left(x+y+z\right)}{x+y+z}=2\)

\(\Rightarrow x+y+z=\frac{1}{2}\)

\(\frac{y+z+1}{x}=\frac{\frac{1}{2}-x+1}{x}=2\Rightarrow x=\frac{1}{2}\)

\(\frac{z+x+2}{y}=\frac{\frac{1}{2}-y+2}{y}=2\Rightarrow y=\frac{5}{6}\)

\(\frac{x+y-3}{z}=\frac{\frac{1}{2}-z-3}{z}=2\Rightarrow z=-\frac{5}{6}\)

they learns how to speak , listen , read and write in english.