nhầm chỗ rồi banj đây là tiếng anh mà

lần sau khắc phục.còn bây giờ thì giải giùm đi

M= 1 - 1/2 + 1/2 - 1/3 +1/3 -1 /4 + 1/4 - 1/5 + .....+ 1/10 - 1/11 + 1/11 -1/12​

   = 1 - 1/12

   = 11/12

Sao lại là ngoại ngữ

phân số đó là -9/5

à nhầm \(\frac{a.b}{\left|a-b\right|}\)

=2.599147656

book ...books... ; school ....schools....

door ....door... classroom ...classrooms.....

board ...boards.... ruler ....rulers....

clock .....clocks... eraser ...erasers.....

bag ....bags..... house .......houses.....

pencil ...pencils... street .....streets.....

pen .....pens.......

\(book\rightarrow books\) \(school\rightarrow schools\)

\(door\rightarrow doors\) \(classroom\rightarrow classrooms\)

\(board\:\rightarrow boards\:\) \(ruler\rightarrow rulers\)

\(clock\rightarrow clocks\) \(eraser\:\rightarrow erasers\:\)

\(bag\rightarrow bags\) \(house\rightarrow houses\)

\(pencil\rightarrow pencils\) \(street\rightarrow streets\)

\(pen\rightarrow pens\)

You buy a ticket and watch a football match here with hundreds of other people : Stadium

You buy a ticket and watch a football match here with hundreds of other people : Stadium