15°20′32″÷4+27°17′32″×5
=12º200'32"÷4+135º85'160"
=3º50'8"+135º87'40"
=3º50'8"+136º27'40"
=139º77'48"
=140º17'48"
180°-(55°35′+64°28′30″)
1个回答
相关问题
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35°43′+28°55′30″
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27°30′=多少°；28.8°=多少 °多少 ′多少 ″ ；89°35′27″+20°55′40″=
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15°15′24〃+55°14′35〃-32°28′19〃
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45+55= 172+28= 173-73= 139+65+35=
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x+y+z=142x/28+y/30+z/35=4.5x/35+y/30+z/28=4+42/60=4.7
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30+32+35+28-32-33的简便算法
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计算sin²25°+tan55°*tan35°+cos²25°-tan²30°
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翻译：8：35 8:05 8:15 8:55 8:30
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解方程(55x+35)(55x+26)-(55x+35)(55x+27)=0
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26 27 28 29 30 31 32 33 34 35