Xét ΔABC có:

+ M∈BC, N∈AB (giả thiết)

+ MN//AC

=> \(\frac{AN}{AB}=\frac{MC}{BC}\)(định lý Talet) (1)

Xét ΔABC có:

+ M∈BC, P∈AC (giả thiết)

+ MP//AB (giả thiết)

=> \(\frac{AP}{AC}=\frac{MB}{BC}\)(định lý Talet) (2)

Từ (1) và (2) =>\(\frac{AN}{AB}+\frac{AP}{AC}=\frac{MC}{BC}+\frac{MB}{BC}=\frac{BC}{BC}=1\)

x + 20 x 5 = 60 + 200

x + 100 = 260

x = 260 - 100

x = 160

~nha bn~

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k co so tu nhien lon nhat nha

a) 16 = 2⁴                                               ; b) 10 = 2 . 5

     48 = 2⁴ . 3                                     100 = 2² . 5²

    36 = 2² . 32                                    1000 = 2³ . 5³                

     81 = 3⁴                                                        10000 = 2⁴. 5⁴

308908373

Cho biểu thức: P = \(\left(\frac{x}{x+3}-\frac{2}{x-3}+\frac{x^2-1}{9-x^2}\right):\left(2-\frac{x+5}{x+3}\right)\)

Tìm GTNN của biểu thức A = -2.x².P

Give the correct form of the verb in brackets

1/The Little Saigon Tet Parade______(give) to celebrate the Lunar New Year and to preserve and promote Vietnamese culture

2/This is the first time I ______(visit) Sydney Opera House in Australia

3/We____(organize) successfully 3 event so far this semester

4/ Mount Rushmore_____(become) an iconic symbol of the United States, and has appeared in works of fiction. It ____(attract) over two million people annually

5/ Stonehenge_____(be) a legally protected Scheduled Ancient Monument since 1882

6/The Sydney Opera House_____(include) a number id performance venues such as: Concert hall, Joan Sutherland Theatre, Drama Theatre and Playhouse

7/America's National Independence Day parade________(take place) annually on July 4th at 11:45 am in Washington D.C

8/England_____(be) one part of the United Kingdom

9/ Hundreds of people____( parade) to celebrate Vietnamese Independence Day