Question

determinati cifrelea mai mare sau egal pt care 10^a-100= ab cu bara​

Answer 1

$\displaystyle\it\\10^a-100=\overline{ab},~pentru~ca~10\leq \overline{ab}\leq 99 \implies\\10\leq 10^a-100\leq 99 \implies 110\leq 10^a\leq 199,~nu~exista\\un~numar~natural~a~cu~aceasta~proprietate,~prin~urmare\\ecuatia~nu~are~solutii.$