6Sin(-90°)+3Sin0°-8Sin270°+12Cos180°
=-6+0+8-12
=-10
10Cos270°+4Sin0°+9tan0°+15Cos360°
=-10+0+0+15
=5
6Sin(-90°)+3Sin0°-8Sin270°+12Cos180° 10Cos270°+4Sin0°+9tan0°
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相关问题
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