已知函数f(x)=2sinxcosx+23cos2x-3+2(1)求函数f(x)

题型:解答题

问题:

已知函数f(x)=2sinxcosx+2
3
cos2 x-
3
+2

(1)求函数f(x)的对称轴方程;
(2)当x∈(0,
π
2
)
时,若函数g(x)=f(x)+m有零点,求m的范围;
(3)若f(x0) =
2
5
x0∈(
π
4
π
2
)
,求sin(2x0)的值.
考点:函数零点的判定定理正弦、余弦函数的图象与性质(定义域、值域、单调性、奇偶性等)
题型:解答题

根据句意及首字母提示,在剧中填入合适的词,并注意词形变化,使句子合乎逻辑,通顺。(5分)

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题型:解答题

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题型:解答题

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