éthbate anna (2A+1)/(2A+1)+(1/10*1/10........*1/10)=1/1=2/2=5/5=1.

éthbate anna :[ 2*2*2*2*2*2*2*2.......................................*2 à allah rabo alalamine]/


[2*2*2*2*2*2................................................................................*2]à allah rabo alalamine



=




[5*5*5*5*5*5.............................................*5 à allah rabo alalamine]/[5*5*5*5*5*5........*5


à allah rabo alalamine]



=


1/1


=


[(2A+1)/(2A+1)]+[1/10*1/10*1/10*1/10*1/10....................*1/10] à allah rabo alalamine


=1.



A: adade sahéhe tabaié. wa 2A+1 layossawé 0.



ladayna 1/1=2/2=5/5.



ladayna :



2A+1/2A+1=



0,999999999999...........999999 à allah rabo alalamine


= (99999999.........9999999)*



(1/10*1/10*1/10*1/10...............*1/10) à allah rabo alalamine.



wa minho:





[(9999999999.........99999999)*(1/10*1/10*1/10..........*1/10)à allah rabo alalamine]+



(1/10*1/10*1/10..............*1/10) à allah robo alalamine





=



[(1/10*1/10*1/10..............*1/10)à allah rabo alalamine ]*[(999999.......99999)+1]





=



[(10*10*10*10.................................*10)à allah rabo alalamine]*



[(1/10*1/10*1/10............*1/10) à allah rabo alalamine]



=

1.





édhane :1/1=2/2=5/5

=



(2A+1)/(2A+1) +(1/10*1/10*1/10.....................*1/10) à allah rabo alalamine

=



1.