−13/39 = −21/63
1/234567 > −2/14
−39/65 = −21/35
1/2012 > −1/14
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BT1: So sanh
\(\frac{-13}{39}va-\frac{21}{63}\)
\(\frac{1}{234567}va-\frac{2}{14}\)
BT2: So sanh
\(\frac{-39}{65}va-\frac{21}{35}\)
\(\frac{1}{2012}va-\frac{1}{14}\)
so sanh cac so huu ti sau bamg cach hop lia,frac{-22}{35}vafrac{-103}{177} b,frac{-17}{23}vafrac{-25}{31} c,frac{-18}{91}vafrac{-23}{114}d,frac{-27}{35}vafrac{-21}{40} e,frac{-22}{45}vafrac{-17}{33}
Đọc tiếp
so sanh cac so huu ti sau bamg cach hop li
a,\(\frac{-22}{35}\)va\(\frac{-103}{177}\) b,\(\frac{-17}{23}\)va\(\frac{-25}{31}\) c,\(\frac{-18}{91}\)va\(\frac{-23}{114}\)
d,\(\frac{-27}{35}\)va\(\frac{-21}{40}\) e,\(\frac{-22}{45}\)va\(\frac{-17}{33}\)
1. Tinh a left(6^9.2^{10}+12^{10}right)+left(2^{19}.27^3+15.4^9.9^4right)2. So sanh A va B.a) Afrac{-2012}{4025};Bfrac{-1999}{3997}b) A3^{21};B2^{31}c) Afrac{2011}{1.2}+frac{2011}{3.4}+frac{2011}{5.6}+....+frac{2011}{1999.2000};Bfrac{2012}{1001}+frac{2012}{1002}+frac{2012}{1003}+....+frac{2012}{2000}
Đọc tiếp
1. Tinh a \(\left(6^9.2^{10}+12^{10}\right)+\left(2^{19}.27^3+15.4^9.9^4\right)\)
2. So sanh A va B.
a) \(A=\frac{-2012}{4025};B=\frac{-1999}{3997}\)
b) \(A=3^{21};B=2^{31}\)
c) \(A=\frac{2011}{1.2}+\frac{2011}{3.4}+\frac{2011}{5.6}+....+\frac{2011}{1999.2000};\)\(B=\frac{2012}{1001}+\frac{2012}{1002}+\frac{2012}{1003}+....+\frac{2012}{2000}\)
so sanh
a) \(\left(\frac{1}{16}\right)^{200}\)va\(\left(\frac{1}{2}\right)^{1000}\)
b) (-32)27 va (-18)39
so sanh
\(\frac{2^{2010}+1}{2^{2007}+1}va\frac{2^{2012}+1}{2^{2009}+1}\)
So sanh:
a,\(\frac{-47}{83}va\frac{65}{-73}\)
b,\(\frac{-176}{527}va\frac{-92}{277}\)
c,\(\frac{-45}{59}va\frac{-71}{96}\)
d,\(\frac{-201}{101}va\frac{-149}{75}\)
THANK YOU VERY MUCH
các ps sau có = nhau ko
\(\frac{-3}{5}va\frac{39}{-65}\)
\(\frac{-9}{27}va\frac{-41}{123}\)
Cho A = \(\left(\frac{1}{2^2}-1\right)\left(\frac{1}{3^2}-1\right)....\left(\frac{1}{2013^2}-1\right)\left(\frac{1}{2014^2}-1\right)\) va B = \(\frac{-1}{2}\), So sanh A va B
1, Tim x,y,z
e, \(\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}\) va x - 2y + 3z =14
h,\(\frac{x}{2}=\frac{y}{3}\) va x . y = 54