Question

mă ajuta cineva
$ma ajuta cineva$
​

Answer 1

$D_{21}$ = {-1, -3, -7, -21, 1, 3, 7, 21}

$D_{18}$ = {-1, -2, -3, -6, -9, -18, 1, 2, 3, 6, 9, 18}

$M_{6}$ = {0, 6, 12, 18, 24, 30, 36, 42, ..... 6K, K ∈ Z}

$M_{8}$ = {0, 8, 16, 24, 32, 40, 48, 56, .... 8K, K ∈ Z}

Answer 2

Răspuns:

D21

$= 1 \: \: \: 3 \: \: \: 7 \: \: \: 21$

D18

$= 1 \: \: \: 2 \: \: \: 3 \: \: \: 6 \: \: \: 9 \: \: \: 18$

M6

$= 0 \: \: \: 6 \: \: \: 12 \: \: \: 18 \: \: \: 24 \: \: \: 30 \: ...$

M8

$= 0 \: \: \: 8 \: \: \: 16 \: \: \: 24 \: \: \: 32 \: \: \: 40 \: ...$