计算要写过程
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9.
(1)
=1800/60
=30′
=30/60
=0.5°
(2)
36″=36/60=0.6′
24.6′=24.6÷60=0.41°
原式=33.41°
(3)
42′=42/60=0.7°
原式=13.7°
(4)24″=24/60=0.4′
35.4′=35.4/60=0.59°
原式=47.59°
10.
(1)
=135°+45°+25′+45′
=160°+70′
=161°10′
(2)
=47°+80′15″-20°-45′
=27°35′15″
(3)
=36°÷6
=6°
(4)
=25°45′+15′+4°30′20″
=26°+4°15′30″
=30°15′30″
(1)
=1800/60
=30′
=30/60
=0.5°
(2)
36″=36/60=0.6′
24.6′=24.6÷60=0.41°
原式=33.41°
(3)
42′=42/60=0.7°
原式=13.7°
(4)24″=24/60=0.4′
35.4′=35.4/60=0.59°
原式=47.59°
10.
(1)
=135°+45°+25′+45′
=160°+70′
=161°10′
(2)
=47°+80′15″-20°-45′
=27°35′15″
(3)
=36°÷6
=6°
(4)
=25°45′+15′+4°30′20″
=26°+4°15′30″
=30°15′30″
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