发布网友 发布时间:2024-10-24 00:07
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热心网友 时间:2024-10-24 13:47
1/4)T=3π/12==>T=π=2π/w==>w=2A=1y=sin(2x+φ)因为函数过(π/6,1)1=sin(π/3+φ)π/3+φ=π/2φ=π/6f(x)=sin(2x+π/6)f(a/2)=sin(a+π/6)=4/5cosa=cos[(a+π/6)-π/6]=cos(a+π/6)cosπ/6+sin(a+π/6)sinπ/6=(3...