作业帮设a,B属于[0,兀/2],f（3a+兀/2）=10/13,f（3B+2兀）=6/5 求sin（a
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![设a,B属于[0,兀/2],f（3a+兀/2）=10/13,f（3B+2兀）=6/5 求sin（a](/uploads/image/z/628984-64-4.jpg?t=%E8%AE%BEa%2CB%E5%B1%9E%E4%BA%8E%5B0%2C%E5%85%80%2F2%5D%2Cf%EF%BC%883a%2B%E5%85%80%2F2%EF%BC%89%3D10%2F13%2Cf%EF%BC%883B%2B2%E5%85%80%EF%BC%89%3D6%2F5+%E6%B1%82sin%EF%BC%88a)
设a,B属于[0,兀/2],f（3a+兀/2）=10/13,f（3B+2兀）=6/5 求sin（a
设a,B属于[0,兀/2],f（3a+兀/2）=10/13,f（3B+2兀）=6/5 求sin（a
设a,B属于[0,兀/2],f（3a+兀/2）=10/13,f（3B+2兀）=6/5 求sin（a
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