已知角a的终边在第二象限,且与单位圆交与点p(a,3/5) ⑴求出a,sina,cosa,tana的值 ⑵求[sin(兀+a)+2sin已知角a的终边在第二象限,且与单位圆交与点p(a,3/5) ⑴求出a,sina,cosa,tana的值 ⑵求[sin(兀+a)+2sin(兀/2
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![已知角a的终边在第二象限,且与单位圆交与点p(a,3/5) ⑴求出a,sina,cosa,tana的值 ⑵求[sin(兀+a)+2sin已知角a的终边在第二象限,且与单位圆交与点p(a,3/5) ⑴求出a,sina,cosa,tana的值 ⑵求[sin(兀+a)+2sin(兀/2](/uploads/image/z/1729753-25-3.jpg?t=%E5%B7%B2%E7%9F%A5%E8%A7%92a%E7%9A%84%E7%BB%88%E8%BE%B9%E5%9C%A8%E7%AC%AC%E4%BA%8C%E8%B1%A1%E9%99%90%2C%E4%B8%94%E4%B8%8E%E5%8D%95%E4%BD%8D%E5%9C%86%E4%BA%A4%E4%B8%8E%E7%82%B9p%28a%2C3%2F5%29+%E2%91%B4%E6%B1%82%E5%87%BAa%2Csina%2Ccosa%2Ctana%E7%9A%84%E5%80%BC+%E2%91%B5%E6%B1%82%5Bsin%28%E5%85%80%2Ba%29%2B2sin%E5%B7%B2%E7%9F%A5%E8%A7%92a%E7%9A%84%E7%BB%88%E8%BE%B9%E5%9C%A8%E7%AC%AC%E4%BA%8C%E8%B1%A1%E9%99%90%2C%E4%B8%94%E4%B8%8E%E5%8D%95%E4%BD%8D%E5%9C%86%E4%BA%A4%E4%B8%8E%E7%82%B9p%28a%2C3%2F5%29+%E2%91%B4%E6%B1%82%E5%87%BAa%2Csina%2Ccosa%2Ctana%E7%9A%84%E5%80%BC+%E2%91%B5%E6%B1%82%5Bsin%28%E5%85%80%2Ba%29%2B2sin%28%E5%85%80%2F2)
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