Sečti úhly:\( \alpha=64^{\circ} 42^{\prime}, \beta=23^{\circ} 33^{\prime} \)
\( 88^{\circ} 15^{\prime} \)
\( 87^{\circ} 75^{\prime} \)
\( 89^{\circ} 10^{\prime} \)
\( 90^{\circ} 00^{\prime} \)