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已知四棱锥P-ABCD的三视图如图所示,则该四棱锥的表面积为 .
已知四棱锥P-ABCD的三视图如图所示,则该四棱锥的表面积为
.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212047356933045/SYS201310232120473569330014_ST/images0.png)
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函数=sinx,x∈[π6,4π3]的值域为
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A.-2
B.
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C.-1
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