\( 17:17 = 1 \)
\( 49:1 = 49 \)
\( 0.1 = 0 \)
\( 87:87 = 1 \)
\( 0:1 = 0 \)
\( 32:1 = 32 \)
\( 0.23 = 0 \)
\( 4:1 = 4 \)
\( x \cdot 14 = 0 \)
\( x = \frac{0}{14} \)
\( x = 0 \)
\( x \cdot 45 = 1 \)
\( x = \frac{1}{45} \)
\( x \cdot 65 = 65 \)
\( x = \frac{65}{65} \)
\( x = 1 \)
\( 98 \cdot x = 1 \)
\( x = \frac{1}{98} \)
\( 0.19 < 19:1 \)
\( 76-1 = 76:1 \)
\( 65:1 \) \( = \) \( 65:65 \)
\( 28:1 \) \( > \) \( 28:0 \)
Ответ: 1) 1, 49, 0, 1, 0, 32, 0, 4. 2) x=0, x=1/45, x=1, x=1/98. 3) <, =, >, >.