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将函数2sin(2x+π/3)+1的图像向左平移π/6个单位,再向商平移3个单位,所得解析式是
人气:194 ℃ 时间:2019-08-17 17:58:34
解答
y=2sin(2x+π/3)+1
=2sin[2(x+π/6)]+1
向左平移π/6个单位:
y=2sin[2(x+π/6+π/6)]+1
=2sin(2x+2π/3)+1
再向上平移3个单位:
y=2sin(2x+2π/3)+1+3
=2sin(2x+2π/3)+4
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