P = 1/49+2/48+3/47+...+48/2+49/1 Cộng 1 vào mỗi p/s trong 48 phân số đầu , trừ phân số cuối đi 48 ta được P=(1/49+1)+(2/48+1)+...+(48/2+1)+1 P= 50/49+50/48+....+50/2+50/50 Đưa phân số cuối lên đầu P=50/50+50/49+50/48+...+50/2 =50.(1/50+1/49+1/48+...+1/4+1/3+1/2) =50.S VậyS/P=1/50

1.Da Nang / attract / lots / tourists / because / it / most beautiful / beaches / Viet Nam. → Da Nang attracts lots of tourists because it has some of the most beautiful beaches in Vietnam. 2.In / first half / the match / our team / score / goal. → In the first half of the match, our team scored a goal 3.you / watch / the men's báketball final / TV / last night ? → Did you watch the men's basketball final on TV last night? 4.His father / teach / him / how / play / football / a very young age. → His father taught him how to play football at a very young age. 5.That singer / live show / theater / be / TV / now. → That singer is doing a live show at the theater, but it is also on TV now. 6.Game show / this week / test / knowledge / rain forests → The game show this week will test knowledge of rain forests.

write correct sentences, using the words or phrases given 1 da nang/attract /lots/tourists/because/it/most beautiful/beaches/viet nam =>Da Nang beach attracts lots of tourists because it is the most beautiful beaches in Viet Nam 2 you/see/latest batman film ? =>Have you seen the latest Batman film ?

write correct sentences, using the words or phrases given 1 da nang/attract /lots/tourists/because/it/most beautiful/beaches/viet nam =>Da Nang beach attracts lots of tourists because it is the most beautiful beaches in Viet Nam 2 you/see/latest batman film ? =>Have you seen the latest Batman film ?

Nha Trang attracts lots of tourists because it is the most beautiful beaches in Viet Nam