Question

comparati numerele naturale de forma:a)4xcu45 ,b)x2cu 32

Answer 1

$a) \overline{4x} \: si \: 45$

$x \: \in \: \left \{ 0,1,2,3,4,5,6,7,8,9 \right \}$

$pt. \: x = 0 = > 40 < 45$

$pt. \: x = 1 = > 41 < 45$

$pt. \: x = 2 = > 42 < 45$

$pt. \: x = 3 = > 43 < 45$

$pt. \: x = 4 = > 44 < 45$

$pt. \: x = 5 = > 45 = 45$

$pt. \: x = 6 = > 46 > 45$

$pt. \: x = 7 = > 47 > 45$

$pt. \: x = 8 = > 48 > 45$

$pt. \: x = 9 = > 49 > 45$

$b)\overline{x2} \: si \: 32$

$x \: \in \: \left \{ 1,2,3,4,5,6,7,8,9 \right \}$

$pt. \: x = 1 = > 12 < 32$

$pt. \: x = 2 = > 22 < 32$

$pt. \: x = 3 = > 32 = 32$

$pt. \: x = 4 = > 42 > 32$

$pt. \: x = 5 = > 52 > 32$

$pt. \: x = 6 = > 62 > 32$

$pt. \: x = 7 = > 72 > 32$

$pt. \: x = 8 = > 82 > 32$

$pt. \: x = 9 = > 92 > 32$