tra loi cam on

R

riverflowsinyou1

!!

1/ Viết công thuc cho tuong ung 1 so huu ti x khac 0 voi so nghich dao cua no
:cool::cool::cool::cool::cool::cool::cool:
2/ :(:(:(:(:(:(:(:(:(:)|=((=((=((=((=((=((o=>o=>|-)@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-@};-=((=((=((=((

x=1:$\frac{1}{x}$ ********************************************************************************************************************************************????????????
 
N

ngocbich74

Chắc thế này

Dạng chung :$x$ và $\dfrac{1}{x}$

VD : $\dfrac{4}{11}$ và $\dfrac{11}{4}$
 
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