Rational thinking
Algebra
Level
2
0.9999999999... + 0.001001001... =
1.000000000...
0.000000000...
1.001001001...
0.990990990...
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1 solution
Let x=0.9999... , then 10x=9.99999...., 10x-x=9x and 9x=9.9999... - 0.9999... =9. Therefore X=1