倍角公式
1.<Object: word/embeddings/oleObject1.bin>
2.已知<Object: word/embeddings/oleObject2.bin>
是第三象限的角，且
<Object: word/embeddings/oleObject3.bin>
，求sin2
<Object: word/embeddings/oleObject4.bin>
的值。3.已知tan<Object: word/embeddings/oleObject5.bin>
=2,求sin2
<Object: word/embeddings/oleObject6.bin>
的值4.计算sin1
0°sin30°sin50°sin70°
5.已知sin<Object: word/embeddings/oleObject7.bin>
=<Object: word/embeddings/oleObject8.bin>
,求<Object: word/embeddings/oleObject9.bin>
的值。6.已知<Object: word/embeddings/oleObject1 ...