函数y=sin(2x+5π/2)的图象的对称轴方程是?A.x=-π/6 B.x=-π/12 C.x=π/6 D.x=π/12

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函数y=sin(2x+5π/2)的图象的对称轴方程是?A.x=-π/6 B.x=-π/12 C.x=π/6 D.x=π/12
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函数y=sin(2x+5π/2)的图象的对称轴方程是?A.x=-π/6 B.x=-π/12 C.x=π/6 D.x=π/12
函数y=sin(2x+5π/2)的图象的对称轴方程是?A.x=-π/6 B.x=-π/12 C.x=π/6 D.x=π/12

函数y=sin(2x+5π/2)的图象的对称轴方程是?A.x=-π/6 B.x=-π/12 C.x=π/6 D.x=π/12
y=sin(2x+5π/2)
=cos2x
所以
对称轴为
2x=kπ
x=kπ/2
么有答案.

这四个答案都不对


按照选项,你的题目输入有误,估计是函数y=sin(2x+5π/6)
函数y=sin(2x+5π/6)的图象的对称轴的特征是通过最低点或最低点
y=sin(2x+5π/6)
(1)x=-π/6时, y=sin(-π/3+5π/6)=sin(-π/2)=-1,是最小值
(2)x=-π/12时,y=sin(-π/6+5π/6)=sin(2π/3), 不是最...

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按照选项,你的题目输入有误,估计是函数y=sin(2x+5π/6)
函数y=sin(2x+5π/6)的图象的对称轴的特征是通过最低点或最低点
y=sin(2x+5π/6)
(1)x=-π/6时, y=sin(-π/3+5π/6)=sin(-π/2)=-1,是最小值
(2)x=-π/12时,y=sin(-π/6+5π/6)=sin(2π/3), 不是最值
(3)x=π/6时, y=sin( π/3+5π/6)=sin(7π/6), 不是最值
(4)x=π/12时, y=sin(π/6+5π/6)=sin(π), 不是最值
∴ 选A

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