求y=1-cos(x/2)的递增区间答案[4kπ,4kπ+2] 求详解.

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求y=1-cos(x/2)的递增区间答案[4kπ,4kπ+2] 求详解.
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求y=1-cos(x/2)的递增区间答案[4kπ,4kπ+2] 求详解.
求y=1-cos(x/2)的递增区间
答案[4kπ,4kπ+2] 求详解.

求y=1-cos(x/2)的递增区间答案[4kπ,4kπ+2] 求详解.
y=1-cos(x/2)
=1-sin(π/2-x/2)
=1+sin(x/2-π/2)
2kπ-π/2