题目
f(x)=2sin(x/3 一兀/6),x属于R 求f(0)
设a,B属于[0,兀/2],f(3a+兀/2)=10/13,f(3B+2兀)=6/5 求sin(a+B)
设a,B属于[0,兀/2],f(3a+兀/2)=10/13,f(3B+2兀)=6/5 求sin(a+B)
提问时间:2021-05-08
答案
举一反三
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