\(t=\frac{2009.2010+2000}{2011.2010-2020}\)

\(t=\frac{2009.2010+2000}{\left(2009+2\right).2010-2020}\)

\(t=\frac{2009.2010+2000}{2009.2010+2.2010-2020}\)

\(t=\frac{2009.2010+2000}{2009.2010+2000}=1\)

\(q=\frac{\text{2014.2015+2010}}{2016.2015-2020}\)

\(q=\frac{\text{2014.2015+2010}}{\left(2014+2\right).2015-2020}\)

\(q=\frac{\text{2014.2015+2010}}{2014.2015+2.2015-2020}\)

\(q=\frac{\text{2014.2015+2010}}{\text{2014.2015+2010}}=1\)

\(A=\frac{2009x2010+2000}{2011x2010-2020}=\frac{2009x2010+2000}{2009x2010+2x2010-2020}=\frac{2009x2010+2000}{2009x2010+4020-2020}=\frac{2000}{4020-2020}=\frac{2000}{2000}=1\)

Nhấn đúng cho mk nha!!!!!!!!!!

Lời giải:

$t=\frac{2009\times 2010+2000}{2011\times 2010-2020}$

$=\frac{2010\times (2011-2)+2000}{2011\times 2010-2020}$

$=\frac{2010\times 2011-2\times 2010+2000}{2011\times 2010-2020}$

$=\frac{2010\times 2011-2020}{2011\times 2010-2020}=1$

Ta có:

T = \(\frac{2009\times2010+2000}{2011\times2010-2020}=\frac{2009\times2010+2010-10}{2010\times2010+2010-2020}=\frac{2010\times2010-10}{2010\times2010-10}=1\)

Vậy T = 1

2009×2010+2000/2011×2010-2020

=2009×2010+2000/2009×2010+2×2010-2020

=2009×2010+2000/2009×2010+4020-2020

=2000/4020-2020

=2000/2000

=1

K đúng cho mk nha !!!

Cảm ơn các bạn nhiều lắm.

\(=\frac{\left(2009-1\right)\cdot2009+2000}{2009\cdot\left(2009+1\right)-2018}=\frac{2009^2-9}{2009^2-9}=1\\ \)

2009x2010+2011x12+1998

      2011x2010-2010x 2009

=2009x2010+2010x12+12+1998

       2010x(2011-2009)

=2010x2009+2010x12+2010x1

              2010x2

=2010x(2009+12+1)

          2010x2

=2010x2022

    2010x2

=2022

     2

=1011

2000/2010 x 2010/2000 x 2020/2030 x 2030/2040 x 2040/50

=1/1 x 1/1 x 202/203

=202/203

=2000 x 2010 x 2020 x 2030 x 2040/2010 x 2020 x 2030 x 2040 x 2050

=2000/2050 = 40/41

Tí cậu gạch 2010;2020;2030;2040;2050 cả trên cả dưới nhé. Tớ ko biết ấn vào đâu để gạch

\(=\dfrac{2019.2010+1,005.2010}{2011.2010+2.2010}=\dfrac{2010\left(2019+1,005\right)}{2010\cdot\left(2011+2\right)}\)

\(=\dfrac{2020,005}{2013}=\dfrac{2020005}{2013000}=\dfrac{404001}{402600}\)