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设a=(a1,a2),b=(b1,b2),定义一种向量积:a⊗b=(a1,b1)...
设a=(a
1,a
2),b=(b
1,b
2),定义一种向量积:a⊗b=(a
1,b
1)⊗(b
1,b
2)=(a
1b
1,a
2b
2).已知m=
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,n=
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,点P(x,y)在y=sin x的图象上运动,点Q在y=f(x)的图象上运动,且满足(x,f(x))=m⊗n(其中O为坐标原点),则y=f(x)的最大值A及最小正周期T分别( )
A.2,π
B.2,4π
C.
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,4π
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212147954832982/SYS201310232121479548329011_ST/3.png)
,π
考点分析:
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