2013 x 2014 x (36 x 47 -18 x94)

=2013 x 2014 x (1692-1692)

=2013 x 2014 x 0

=0

= 0 

chúc bạn học tốt

2013x2014x(36x47-18x94)=2013x2014x(1692-1692)=2013x2014x0=0

2013x2014x(36x47-18x94)=2013x2014x(1692-1692)=2013x2014x0=0

câu này  bằng 0 nhá các bạn

2013x2012x(36x47-18x2x47)
=2013x2012x(36x47-36x47)
=2013x2012x0
= 0

a) \(\frac{47}{32}>\frac{36}{46}\)Vì phân số \(\frac{47}{32}>1;\frac{36}{46}< 1\)nên \(\frac{47}{32}>\frac{36}{46}\)

b) \(\frac{199}{200}< \frac{200}{201}\)Vì \(\frac{199}{200}=\frac{199.201}{200.201};\frac{200}{201}=\frac{200.200}{201.200}\)

ta so sánh 199.201 và 200.200 

199.201 = 199.(200+1) = 199.200+199

200.200 = 200.(199+1) = 200.199+200

Vì 199.200 + 199 < 200.199+200 nên \(\frac{199}{200}< \frac{200}{201}\)

c) \(\frac{2012.2010}{2011.2011}=\frac{\left(2011+1\right).2010}{2011.\left(2010+1\right)}=\frac{2011.2010+2010}{2011.2010+2011}\)

\(\frac{2013.2009}{2014.2008}=\frac{2013.\left(2008+1\right)}{\left(2013+1\right).2008}=\frac{2013.2008+2013}{2013.2008+2008}\)

ta so sánh : \(\frac{2010}{2011}< \frac{2013}{2008}\) vì \(\frac{2010}{2011}< 1;\frac{2013}{2008}>1\)

= 0 nha bạn **** mình nha.