Question

tính nhanh

\(\frac{1995\times1997-1}{1996\times1995+199}\)

Answer 1

1995(1996+1)-1/1996.1995+1994

1995.1996+1995-1/1996.1995+1994

1995.1996+1994/1996.1995+1994=1

Answer 2

\(\frac{1995.1997-1}{1996.1995+199}\)= \(\frac{1995.\left(1996+1\right)-1}{1996.1995+199}\)

                         = \(\frac{1995.1996+1995.1-1}{1996.1995+199}\)

                         = \(\frac{1995.1996+1994}{1996.1995+199}\)

làm đến đây thì mình chịu

Answer 3

sai đề rồi bạn ơi phải là 1995*1997-1

                                   1996*1995+1994

Answer 4

1995x1997-1       

1996x1995+199

 

 

1996       

1996+199

 

 

1   

199

 

 

 

Answer 5

1995.1997-1/1996.1995+1994

=1995.(1996+1)-1/1996.1995+1994

=1995.1996+1995-1/1995.1996+1994

=1995.1996+1994/1995.1996+1994

=1

Answer 6

= 1 nha tik mk may mắn cả năm ~~~~~~~~~~~~

Answer 7

1/99

online math duyệt nhé

Answer 8

=1995(1996+1)-1/1996.1995+1994

=1995.1996+1995-1/1996.1995+1994

=1995.1996+1994/1996.1995+1994

=1

Answer 9

= 1995 x (1996 + 1) -1/1996 x 1995 + 1994

= 1995 x 1996 + 1995 - 1/ 1996 x 1995 + 1994

= 1995 x 1996 + 1994/1995 x 1996 + 1994

= 1

Answer 10

1/99

duyệt nha olm

Answer 11

cho mik nha

Answer 12

= 1 nha bạn

olm duyệt nhanh

Answer 13

sai đề rồi bạn!

Answer 14

       =  1995.(1996+1)-1/1996.1995+1994

         =1995.1996+1994/1996.1995+1994(chỗ này làm tắt chút)

        =1

Duyệt nhé!!!!!!!!

Answer 15

\(\frac{1995\times1997-1}{1996\times1995+199}\)

\(=\) \(\frac{1995\times\left(1996+1\right)-1}{1996\times1995+1994}\)

\(=\) \(\frac{1995\times1996+1995-1}{1996\times1995+1994}\)

\(=\)\(\frac{1995\times1996+1994}{1996\times1995+1994}\)

\(=\) \(\frac{1\times1+1994}{1\times1+1994}\)

\(=\) \(1\)

duyệt đi

Answer 16

TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT

Answer 17

 1 nha duyệt đy

Answer 18

tớ thấy vô lý ở tử tớ sữa lại cho nhé 

tớ làm đấy 

\(\frac{1995\times1997-1}{1996\times1995+1994}=\frac{1995\times\left(1996+1\right)-1}{1996\times1995+1994}=\frac{1995\times1996+\left(1995-1\right)}{1996\times1995+1994}=\)

\(\frac{1995\times1996+1994}{1996\times1995+1994}=1\)

mới đúng với thực tế nhé 

Answer 19

dể qua hông muốn làm

Answer 20

1995 x 1997 - 1/1996 x 1995 + 199

=1997-1/1996+199

=1996/1996+199

=1/199

 

Answer 21

bang 1

onl duyet nhe

Answer 22

1 đó bạn mk chắc 100%

Answer 23

Kết quả là 1

Answer 24

Tớ đồng ý với ý kiến của Vũ Việt Hà

Answer 25

=1995 x (1996+1)-1/1996 x 1995+1994

=1995 x 1996+1995-1/1996 x 1995+1994

=1995 x 1996 +1994/1995 x 1996+1994

=1

Answer 26

dap an =1 tic minh cam on

Answer 27

Bằng 1 bạn nhé

Answer 28

Ta xét tử số: 1995x1997-1=1995x(1996+1)-1=1995x1996+1995-1=1995x1996+1994

Vậy gtrị của p/số trên là 1

Answer 29

1

 

Answer 30

\(\frac{1995x1997-1}{1996x1995+1994}\)

=\(\frac{1995x\left(1996+1\right)-1}{1996x1995+1994}\)

=\(\frac{1995x1996+1995-1}{1996x1995+1994}\)

=\(\frac{1995x1996+1994}{1996x1995+1994}\)

=\(1\)