y=sin(2x+π/3) x∈[0,π/2] 的单调增区间以及值域.
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y=sin(2x+π/3) x∈[0,π/2] 的单调增区间以及值域.
y=sin(2x+π/3) x∈[0,π/2] 的单调增区间以及值域.
y=sin(2x+π/3) x∈[0,π/2] 的单调增区间以及值域.
正弦函数增区间:【-π/2,+π/2】
所以 -π/2
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