用度表示下列各角. (1)37°36″; (2)51°6′; (3)15°24′36″.
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(1)37°36″=37°+( 36 60 )′
=37°+0.6′
=37°+( 0.6 60 )°
=37°+0.01°
=37.01°;
(2)51°6′=51°+( 6 60 )°
=51°+0.1°
=51.1°;
(3)15°24′36″=15°24′+( 36 60 )′
=15°24′+0.6′
=15°+24.6′
=15°+( 24.6 60 )°
=15°+0.41°
=15.41°.
=37°+0.6′
=37°+( 0.6 60 )°
=37°+0.01°
=37.01°;
(2)51°6′=51°+( 6 60 )°
=51°+0.1°
=51.1°;
(3)15°24′36″=15°24′+( 36 60 )′
=15°24′+0.6′
=15°+24.6′
=15°+( 24.6 60 )°
=15°+0.41°
=15.41°.
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